留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

最新录用

显示方式:
Improvement of wheat drought tolerance through editing of TaATX4 by CRISPR/Cas9
Zhongxue Wang, Yifang Zhang, Zhensheng Kang, Hude Mao
, doi: 10.1016/j.jgg.2023.10.001
摘要:
Distinguished biological adaptation architecture aggravated population differentiation of Tibeto-Burman-speaking people inferred from 500 whole-genome data from 39 populations
Yuntao Sun, Mengge Wang, Qiuxia Sun, Yan Liu, Shuhan Duan, Zhiyong Wang, Yunyu Zhou, Jun Zhong, Yuguo Huang, Xinyu Huang, Qingxin Yang, Xiangping Li, Haoran Su, Yan Cai, Xiucheng Jiang, Jing Chen, Jiangwei Yan, Shengjie Nie, Liping Hu, Junbao Yang, Renkuan Tang, Chuan-Chao Wang, Chao Liu, Xiaohui Deng, Libing Yun, Guanglin He
, doi: 10.1016/j.jgg.2023.10.002
摘要:
Tibeto-Burman (TB) people have endeavored to adapt to the hypoxic, cold, and high-UV high-altitude environments in the Tibetan Plateau and complex disease exposures in lowland rainforests since the late Paleolithic period. However, the full landscape of genetic history and biological adaptation of geographically diverse TB-speaking people, as well as their interaction mechanism remain unknown. We generate a whole-genome meta-database of 500 individuals from 39 TB-speaking populations in East Asia and Southeast Asia and present a comprehensive landscape of genetic diversity, admixture history, and differentiated adaptative features of geographically different TB-speaking people. We identify genetic differentiation related to geography and language among TB-speaking people, consistent with their differentiated admixture process with incoming or indigenous ancestral source populations. A robust genetic connection between the Tibetan-Yi corridor and ancient Yellow River people supports their Northern China origin hypothesis. We finally report substructure-related differentiated biological adaptative signatures between highland Tibetans and Loloish speakers. Adaptative signatures associated with the physical pigmentation (EDAR and SLC24A5) and metabolism (ALDH9A1) are identified in Loloish people, which differed from the high-altitude adaptative genetic architecture in Tibetan. TB-related genomic resources provide new insights into the genetic basis of biological adaptation and better reference for the anthropologically-informed sampling design in biomedical and genomic cohort research.
The genome-wide meiotic recombination landscape in ciliates and its implications for crossover regulation and genome evolution
Lu Fu, Chen Gu, Kazufumi Mochizuki, Jie Xiong, Wei Miao, Guangying Wang
, doi: 10.1016/j.jgg.2023.09.013
摘要:
Meiotic recombination is essential for sexual reproduction and its regulation has been extensively studied in many taxa. However, genome-wide recombination landscape has not been reported in ciliates and it remains unknown how it is affected by the unique features of ciliates: the synaptonemal complex (SC)-independent meiosis and the nuclear dimorphism. Here we show the recombination landscape in the model ciliate Tetrahymena thermophila by analyzing single-nucleotide polymorphism datasets from 38 hybrid progeny. We detect 1021 crossover (CO) events (35.8 per meiosis), corresponding to an overall CO rate of 9.9 cM/Mb. However, gene conversion by non-crossover is rare (1.03 per meiosis) and not biased toward G or C alleles. Consistent with the reported roles of SC in CO interference, we find no obvious sign of CO interference. CO tends to occur within germ-soma common genomic regions and many of the 44 identified CO hotspots localize at the centromeric or subtelomeric regions. Gene Ontology analyses show that CO hotspots are strongly associated with genes responding to environmental changes. We discuss these results with respect to how nuclear dimorphism has potentially driven the formation of the observed recombination landscape to facilitate environmental adaptation and the sharing of machinery among meiotic and somatic recombination.
Triticeae-BGC: a Web-based platform for detecting, annotating and evolutionary analysis of biosynthetic gene clusters in Triticeae
Mingxv Li, Haoyu Wang, Shilong Tian, Yan Zhu, Yijing Zhang
, doi: 10.1016/j.jgg.2023.09.014
摘要:
IMAGGS: a radiogenomic framework for identifying multi-way associations in breast cancer subtypes
Shuyu Liang, Sicheng Xu, Shichong Zhou, Cai Chang, Zhiming Shao, Yuanyuan Wang, Sheng Chen, Yunxia Huang, Yi Guo
, doi: 10.1016/j.jgg.2023.09.010
摘要:

The investigation of correlations between radiomic and genomic profiling in breast cancer (BC) molecular subtypes is crucial for understanding disease mechanisms and providing personalized treatment. We present a well-designed radiogenomic framework—image-gene-gene set (IMAGGS), which detects multi-way associations in BC subtypes by integrating radiomic and genomic features.Our dataset consists of 721 patients, each of whom has 12 ultrasound (US) images captured from different angles and gene mutation data. To better characterize tumor traits, 12 multi-angle US images are fused using two distinct strategies. Then, we analyze complex many-to-many associations between phenotypic and genotypic features using a machine learning algorithm, deviating from the prevalent one-to-one relationship pattern observed in previous studies. Key radiomic and genomic features are screened using these associations. In addition, gene set enrichment analysis is performed to investigate the joint effects of gene sets and delve deeper into the biological functions of BC subtypes. We further validate the feasibility of IMAGGS in a glioblastoma multiforme dataset to demonstrate the scalability of IMAGGS across different modalities and diseases. Taken together, IMAGGS provides a comprehensive characterization for diseases by associating imaging, genes, and gene sets, paving the way for biological interpretation of radiomics and development of targeted therapy.

Unraveling the complexity of polycystic ovary syndrome with animal models
Huanju Liu, Mixue Tu, Zhiyong Yin, Dan Zhang, Jun Ma, Feng He
, doi: 10.1016/j.jgg.2023.09.012
摘要:

Polycystic ovary syndrome (PCOS) is a highly familial and heritable endocrine disorder. Over half of the daughters born to women with PCOS may eventually develop their own PCOS-related symptoms. Progress in the treatment of PCOS is currently hindered by the complexity of its clinical manifestations and incomplete knowledge of its etiopathogenesis. Various animal models, including experimentally-induced, naturally-occurring, and spontaneously-arising ones, have been established to emulate a wide range of phenotypical and pathological traits of human PCOS. These studies have led to a paradigm shift for understanding the genetic,developmental, and evolutionary origins of this disorder. Furthermore, emerging evidence suggests that animal models are useful in evaluating state-of-the-art drugs and treatments for PCOS. This review aims to provide a comprehensive summary of recent studies of PCOS in animal models, highlighting the power of these disease models in understanding the biology of PCOS and aiding high-throughput approaches.

scEpiTools: a database to comprehensively interrogate analytic tools for single-cell epigenomic data
Zijing Gao, Xiaoyang Chen, Zhen Li, Xuejian Cui, Qun Jiang, Keyi Li, Shengquan Chen, Rui Jiang
, doi: 10.1016/j.jgg.2023.09.011
摘要:
A mutation in TBXT causes congenital vertebral malformations in humans and mice
Shuxia Chen, Yunping Lei, Yajun Yang, Chennan Liu, Lele Kuang, Li Jin, Richard H. Finnell, Xueyan Yang, Hongyan Wang
, doi: 10.1016/j.jgg.2023.09.009
摘要:

T-box transcription factor T (TBXT; T) is required for mesodermal formation and axial skeletal development. Although it has been extensively studied in various model organisms, human congenital vertebral malformations (CVMs) involving T are not well established. Here, we report a family with 15 CVM patients distributed across four generations. All affected individuals carry a heterozygous mutation, T c.596A>G (p.Q199R), which is not found in unaffected family members, indicating co-segregation of the genotype and phenotype. In vitro assays show that T p.Q199R increases the nucleocytoplasmic ratio and enhances its DNA-binding affinity, but reduces its transcriptional activity compared to the wild-type. To determine the pathogenicity of this mutation in vivo, we generated a Q199R knock-in mouse model that recapitulates the human CVM phenotype. The heterozygous Q199R mice show subtle kinked or shortened tails, while the homozygous mice exhibit tail filaments and severe vertebral deformities. Overall, we show that the Q199R mutation in T causes CVM in humans and mice, providing new evidence supporting the function of T in the genetic etiology of human CVM.

CRISPR-mediated acceleration of wheat improvement: advances and perspectives
Ximeng Zhou, Yidi Zhao, Pei Ni, Zhongfu Ni, Qixin Sun, Yuan Zong
, doi: 10.1016/j.jgg.2023.09.007
摘要:
Common wheat (Triticum aestivum) is one of the most widely cultivated and consumed crops globally. In the face of limited arable land and climate changes, it is a great challenge to maintain current and increased future wheat production. Enhancing agronomic traits in wheat by introducing mutations across all three homoeologous copies of each gene has proven to be a difficult task due to its large genome with high repetition. However, CRISPR/Cas genome editing technologies offer a powerful means of precisely manipulating the genomes of crop species, thereby opening up new possibilities for biotechnology and breeding. In this review, we first focus on the development and optimization of current CRISPR-based genome editing tools in wheat, emphasizing recent breakthroughs in precise and multiplex genome editing. We then describe the general procedure of wheat genome editing and highlight different methods to deliver the necessary genome editing reagents into wheat cells. Furthermore, we summarize the recent applications and advancements of CRISPR/Cas technologies for wheat improvement. Lastly, we discuss the remaining challenges specific to wheat genome editing and its future prospects.
TaBZR1 enhances wheat salt tolerance via promoting ABA biosynthesis and ROS scavenging
Ruizhen Yang, Ziyi Yang, Meng Xing, Yexing Jing, Yunwei Zhang, Kewei Zhang, Yun Zhou, Huixian Zhao, Weihua Qiao, Jiaqiang Sun
, doi: 10.1016/j.jgg.2023.09.006
摘要:
Brassinosteroids (BRs) are vital plant steroid hormones involved in numerous aspects of plant life including growth, development, and responses to various stresses. However, the underlying mechanisms of how BR regulates abiotic stress responses in wheat (Triticum aestivum L.) remain to be elucidated. Here, we find that BR signal core transcription factor BRASSINAZOLE-RESISTANT1 (TaBZR1) is significantly up- regulated by salt treatment. Overexpression of Tabzr1-1D (a gain-of-function TaBZR1 mutant protein) improves wheat salt tolerance. Furthermore, we show that TaBZR1 binds directly to the G-box motif in the promoter of ABA biosynthesis gene TaNCED3 to activate its expression and promotes ABA accumulation. Moreover, TaBZR1 associates with the promoters of ROS-scavenging genes TaGPX2 and TaGPX3 to activate their expression. Taken together, our results elucidate that TaBZR1 improve salt-stress tolerance by activating some genes involved in the biosynthesis of ABA and ROS scavenging in wheat, which give us a new strategy to improve the salt tolerance of wheat.
The evolving views of hematopoiesis: from embryo to adulthood and from in vivo to in vitro
Yifan Zhang, Feng Liu
, doi: 10.1016/j.jgg.2023.09.005
摘要:
The hematopoietic system composed of hematopoietic stem and progenitor cells (HSPCs) and their differentiated lineages serves as an ideal model to uncover generic principles of cell fate transitions. From gastrulation onwards, there successively emerge primitive hematopoiesis (that produces specialized hematopoietic cells), pro-definitive hematopoiesis (that produces lineage-restricted progenitor cells), and definitive hematopoiesis (that produces multipotent HSPCs). These nascent lineages develop in several transient hematopoietic sites and finally colonize into lifelong hematopoietic sites. The development and maintenance of hematopoietic lineages are orchestrated by cell-intrinsic gene regulatory networks and cell-extrinsic microenvironmental cues. Owing to the progressive methodology (e.g., high-throughput lineage tracing and single-cell functional and omics analyses), our understanding of the developmental origin of hematopoietic lineages and functional properties of certain hematopoietic organs have been updated; meanwhile, new paradigms to characterize rare cell types, cell heterogeneity and its causes, and comprehensive regulatory landscapes have been provided. Here, we review the evolving views of HSPC biology during developmental and postnatal hematopoiesis. Moreover, we discuss recent advances in the in vitro induction and expansion of HSPCs, with a focus on the implications for clinical applications.
Mechanisms underlying key agronomic traits and implications for molecular breeding in soybean
Chao Fang, Haiping Du, Lingshuang Wang, Baohui Liu, Fanjiang Kong
, doi: 10.1016/j.jgg.2023.09.004
摘要:
Soybean (Glycine max [L.] Merr.) is an important crop that provides protein and vegetable oil for human consumption. As soybean is a photoperiod-sensitive crop, its cultivation and yield are limited by the photoperiodic conditions in the field. In contrast to other major crops, soybean has a special plant architecture and a special symbiotic nitrogen fixation system, representing two unique breeding directions. Thus, flowering time, plant architecture, and symbiotic nitrogen fixation are three critical or unique yield- determinative factors. This review summarizes the progress made in our understanding of these three critical yield-determining factors in soybean. Meanwhile, we propose potential research directions to increase soybean production, discuss the application of genomics and genomic-assisted breeding, and explore research directions to address future challenges, particularly those posed by global climate change.
PICOTEES: a privacy-preserving online service of phenotype exploration for genetic-diagnostic variants from Chinese children cohorts
Xinran Dong, Yulan Lu, Lanting Guo, Chuan Li, Qi Ni, Bingbing Wu, Huijun Wang, Lin Yang, Songyang Wu, Qi Sun, Hao Zheng, Wenhao Zhou, Shuang Wang
, doi: 10.1016/j.jgg.2023.09.003
摘要:
The growth in biomedical data resources has raised potential privacy concerns and risks of genetic information leakage. For instance, exome sequencing aids clinical decisions by comparing data through web services, but it requires significant trust between users and providers. To alleviate privacy concerns, the most commonly used strategy is to anonymize sensitive data. Unfortunately, studies have shown that anonymization is insufficient to protect against reidentification attacks. Recently, privacy-preserving technologies have been applied to preserve application utility while protecting the privacy of biomedical data. We present the PICOTEES framework, a privacy- preserving online service of phenotype exploration for genetic-diagnostic variants. PICOTEES enables privacy-preserving queries of the phenotype spectrum for a single variant by utilizing Trusted Execution Environment technology, which is able to protect the privacy of the user’s query information, backend models, and data, as well as the final results. We demonstrate the utility and performance of PICOTEES by exploring a bioinformatics dataset. The dataset is from a cohort containing 20,909 genetic testing patients with 3,152,508 variants from the Children’s Hospital of Fudan University in China, dominated by the Chinese Han population (>99.9%). Our query results yield a large number of unreported diagnostic variants and previously reported pathogenicity.
TaACTIN7-D regulates plant height and grain shape in bread wheat
Xiongtao Li, Beilu Cao, Dejie Du, Long Song, Lulu Tian, Xiaoming Xie, Zhaoyan Chen, Yanpeng Ding, Xuejiao Cheng, Yingyin Yao, Weilong Guo, Zhenqi Su, Qixin Sun, Zhongfu Ni, Lingling Chai, Jie Liu
, doi: 10.1016/j.jgg.2023.09.001
摘要:
Exploitation of new gene resources and genetic networks contributing to the control of crop yield-related traits, such as plant height and grain size and shape, may enable us to breed modern high-yielding wheat varieties through molecular methods. In this study, via ethylmethanesulfonate (EMS) mutagenesis, we identified a wheat mutant plant, mu-597, that shows semi-dwarf plant architecture and round grain shape. Through bulked segregant RNA-seq and map-based cloning, the causal gene for the semi-dwarf phenotype of mu-597 was located. We found that a single-base mutation in the coding region of TaACTIN7-D (TaACT7-D), leading to a Gly-to-Ser (G65S) amino acid mutation at the 65th residue of the deduced TaACT7-D protein, can explain the semi- dwarfism and round grain shape of mu-597. Further evidence shows that the G65S mutation in TaACT7-D hinders the polymerization of actin from monomeric (G-actin) to filamentous (F-actin) status while attenuates wheat responses to multiple phytohormones, including brassinosteroids, auxin, and gibberellin. Together, these findings not only define a new semi-dwarfing gene resource that can be potentially used to design plant height and grain shape of bread wheat but also establish a direct link between actin structure modulation and phytohormone signal transduction.
Coiled-coil domain-containing 38 is required for acrosome biogenesis and fibrous sheath assembly in mice
Yaling Wang, Xueying Huang, Guoying Sun, Jingwen Chen, Bangguo Wu, Jiahui Luo, Shuyan Tang, Peng Dai, Feng Zhang, Jinsong Li, Lingbo Wang
, doi: 10.1016/j.jgg.2023.09.002
摘要:
During spermiogenesis, haploid spermatids undergo dramatic morphological changes to form slender sperm flagella and cap-like acrosomes, which are required for successful fertilization. Severe deformities in flagella cause a male infertility syndrome, multiple morphological abnormalities of the flagella (MMAF), while acrosomal hypoplasia in some cases leads to sub-optimal embryonic developmental potential. However, evidence regarding the occurrence of acrosomal hypoplasia in MMAF is limited. Here, we report the generation of base-edited mice knocked out for coiled-coil domain-containing 38 (Ccdc38) via inducing a nonsense mutation and find that the males are infertile. The Ccdc38-KO sperm display acrosomal hypoplasia and typical MMAF phenotypes. We find that the acrosomal membrane is loosely anchored to the nucleus and fibrous sheaths are disorganized in Ccdc38-KO sperm. Further analyses reveal that Ccdc38 knockout causes a decreased level of TEKT3, a protein associated with acrosome biogenesis, in testes and an aberrant distribution of TEKT3 on sperm. We finally show that intracytoplasmic sperm injection overcomes Ccdc38-related infertility. Our study thus reveals a previously unknown role for CCDC38 in acrosome biogenesis and provides additional evidence for the occurrence of acrosomal hypoplasia in MMAF.
Sex-biased single cell genetic landscape in mice with autism spectrum disorder
Qian Zhang, Yongjie Wang, Jie Tao, Ruixue Xia, Yijie Zhang, Zhirui Liu, Jiwei Chenga
, doi: 10.1016/j.jgg.2023.08.012
摘要:
Autistic spectrum disorder (ASD) is a male-biased heterogeneous neurodevelopmental disorder that affects approximately 1%–2% of the population. Prenatal exposure to valproic acid (VPA) is a recognized risk factor for ASD, but the cellular and molecular basis of VPA-induced ASD at the single-cell resolution is unclear. Here, we aimed to compare the cellular and molecular differences in the hippocampus between male and female prenatal mice with ASD at the single-cell transcriptomic level. The transcriptomes of more than 45,000 cells were assigned to 12 major cell types, including neurons, glial cells, vascular cells, and immune cells. Cell type-specific genes with altered expression after prenatal VPA exposure were analyzed, and the largest number of differentially expressed genes (DEGs) were found in neurons, choroid plexus epithelial cells, and microglia. In microglia, several pathways related to inflammation were found in both males and females, including the TNF, NF-κB, Toll-like receptor, and MAPK signaling pathways, which are important for the induction of autistic-like behavior. Additionally, we noted that several X-linked genes, including Bex1, Bex3, and Gria3, were among the male-specific DEGs of neurons. This pioneering study describes the landscape of the transcriptome in the hippocampus of autistic individuals. The elucidation of sexual differences could provide innovative strategies for the prevention and treatment of ASD.
A systematic evaluation of computational methods for predicting translated non-canonical ORFs from ribosome profiling data
Tianyu Lei, Yue Chang, Chao Yao, Hong Zhang
, doi: 10.1016/j.jgg.2023.08.010
摘要:
TaANR1-TaMADS25 module regulates lignin biosynthesis and root development in wheat (Triticum aestivum L.)
Weiya Xu, Yongming Chen, Bin Liu, Qiuyuan Li, Yilan Zhou, Xuanshuang Li, Weilong Guo, Zhaorong Hu, Zhenshan Liu, Mingming Xin, Yingyin Yao, Mingshan You, Huiru Peng, Zhongfu Ni, Jiewen Xing
, doi: 10.1016/j.jgg.2023.08.011
摘要:
Phosphorylation of KAT-2B by WKS1/Yr36 redirects the lipid flux to jasmonates to enhance resistance against wheat stripe rust
Yan Yan, Xiao-Ming Li, Yun Chen, Tian-Tian Wu, Ci-Hang Ding, Mei-Qi Zhang, YueTing Guo, Chu-Yang Wang, Junli Zhang, Xuebin Zhang, Awais Rasheed, Shengchun Xu, Meng-Lu Wang, Zhongfu Ni, Qixin Sun, Jin-Ying Gou
, doi: 10.1016/j.jgg.2023.08.009
摘要:

Wheat (Triticum aestivum) is one of the most essential human energy and protein sources. However, wheat production is threatened by devastating fungal diseases, such as stripe rust, caused by Puccinia striiformis Westend. f. sp. tritici(Pst). Here, we reveal that the alternations in chloroplast lipid profiles and the accumulation of jasmonate (JA) in the necrosis region activate JA signaling and trigger the host defense. The collapse of chloroplasts in the necrosis region results in accumulations of polyunsaturated membrane lipids and the lipid-derived phytohormone, JA, in transgenic lines of Yr36 that encodes Wheat Kinase START 1 (WKS1), a high-temperature-dependent adultplant resistance protein. WKS1.1, a protein encoded by a full-length splicing variant of WKS1, phosphorylates and enhances the activity of keto-acyl thiolase (KAT-2B), a critical enzyme catalyzing the β-oxidation reaction in JA biosynthesis. The premature stop mutant, kat-2b, accumulates less JA and shows defects in the host defense against Pst. Conversely, over-expression of KAT-2B results in a higher level of JA and limits the growth of Pst. Moreover, JA inhibits the growth and reduces pustule densities of Pst. This study illustrates the WKS1.1-KAT-2B-JA pathway enhancing wheat defense against fungal pathogens to attenuate yield loss.

Multi-omics analyses of G6PD deficiency variants in Chinese population
He Ji, Jiahuan Chen, Peide Huang, Zhimin Feng, Weining Hu, Mengyao Dai, Xiaohui Sun, Xiao Jin, Guangquan Chen, Guang Ning, Lin Li, Weiqing Wang, Yanan Cao
, doi: 10.1016/j.jgg.2023.08.008
摘要:
Microbiome and metabolome dysbiosis analysis in impaired glucose tolerance for the prediction of progression to diabetes mellitus
Boxun Zhang, Xuan Zhang, Zhen Luo, Jixiang Ren, Xiaotong Yu, Haiyan Zhao, Yitian Wang, Wenhui Zhang, Weiwei Tian, Xiuxiu Wei, Qiyou Ding, Haoyu Yang, Zishan Jin, Xiaolin Tong, Jun Wang, Linhua Zhao
, doi: 10.1016/j.jgg.2023.08.005
摘要:
Gut microbiota and circulating metabolite dysbiosis predate important pathological changes in glucose metabolic disorders; however, comprehensive studies on impaired glucose tolerance (IGT), a diabetes mellitus (DM) precursor, are lacking. Here, we perform metagenomic sequencing and metabolomics of 47 pairs of individuals with IGT and newly diagnosed DM, and 46 controls with normal glucose tolerance (NGT); patients with IGT are followed-up after 4 years for progression to DM. Analysis of baseline data reveal significant differences in gut microbiota and serum metabolites among the IGT, DM, and NGT groups. In addition, 13 types of gut microbiota and 17 types of circulating metabolites show significant differences at baseline before IGT progressed to DM, including higher levels of Eggerthella unclassified, Coprobacillus unclassified, Clostridium ramosum, L-valine, L-norleucine, and L-isoleucine, and lower levels of Eubacterium eligens, Bacteroides faecis, Lachnospiraceae bacterium 3_1_46FAA, Alistipes senegalensis, Megaspaera elsdenii, Clostridium perfringens, α-linolenic acid, 10E,12Z octadecadienoic acid, and dodecanoic acid. A random forest model based on differential intestinal microbiota and circulating metabolites can predict the progression from IGT to DM (AUC = 0.87). These results suggest that microbiome and metabolome dysbiosis occur in individuals with IGT and have important predictive values and potential for intervention in preventing IGT from progressing to DM.
Insights into plant salt stress signaling and tolerance
Huapeng Zhou, Haifan Shi, Yongqing Yang, Xixian Feng, Xi Chen, Fei Xiao, Honghui Lin, and Yan Guo
, doi: 10.1016/j.jgg.2023.08.007
摘要:
Soil salinization is an essential environmental stressor, threating agricultural yield and ecological security worldwide. Saline soils accumulate excessive soluble salts which are detrimental to most plants by limiting plant growth and productivity. It is of great necessity for plants to efficiently deal with the adverse effects caused by salt stress for survival and successful reproduction. Multiple determinants of salt tolerance have been identified in plants, and the cellular and physiological mechanisms of plant salt response and adaption have been intensely characterized. Plants respond to salt stress signals and rapidly initiate signaling pathways to re-establish cellular homeostasis with adjusted growth and cellular metabolism. This review summarizes the advances in salt stress perception, signaling and response in plants. A better understanding of plant salt resistance will contribute to improving crop performance under saline conditions using multiple engineering approaches. The rhizosphere microbiome- mediated plant salt tolerance as well as chemical priming for enhanced plant salt resistance are also discussed in this review.
ORPA: a fast and efficient phylogenetic analysis method for constructing genomewide alignments of organelle genomes
Guiqi Bi, Xinxin Luan, Jianbin Yan
, doi: 10.1016/j.jgg.2023.08.006
摘要:

Creating a multi-gene alignment matrix for phylogenetic analysis using organelle genomes involves aligning single-gene datasets manually, a process that can be time-consuming and prone to errors. The HomBlocks pipeline has been created to eliminate the inaccuracies arising from manual operations. The processing of a large number of sequences, however, remains a time- consuming task. To conquer this challenge, we develop a speedy and efficient method called Organelle Genomes for Phylogenetic Analysis (ORPA). ORPA can quickly generate multiple sequence alignments for whole-genome comparisons by parsing the result files of NCBI BLAST, completing the task in just one minute. With increasing data volume, the efficiency of ORPA is even more pronounced, over 300 times faster than HomBlocks in aligning 60 high-plant chloroplast genomes. The phylogenetic tree outputs from ORPA are equivalent to HomBlocks, indicating its outstanding efficiency. Due to its speed and accuracy, ORPA can identify species- level evolutionary conflicts, providing valuable insights into evolutionary cognition.

Natural variation in the SVP contributes to the pleiotropic adaption of Arabidopsis thaliana across contrasted habitats
Xiang Guo, Ruyun Liang, Shangling Lou, Jing Hou, Liyang Chen, Xin Liang, Xiaoqin Feng, Yingjun Yao, Jianquan Liu, Huanhuan Liu
, doi: 10.1016/j.jgg.2023.08.004
摘要:

Coordinated plant adaptation involves the interplay of multiple traits driven by habitat- specific selection pressures. Pleiotropic effects, wherein genetic variants of a single gene control multiple traits, can expedite such adaptations. Until present, only a limited number of genes have been reported to exhibit pleiotropy. Here, we create a recombinant inbred line (RIL) population derived from two Arabidopsis thaliana (A. thaliana) ecotypes originating from divergent habitats. Using this RIL population, we identify an allelic variation in a MADS-box transcription factor, SHORT VEGETATIVE PHASE (SVP), which exerts a pleiotropic effect on leaf size and drought-versus-humidity tolerance. Further investigation reveals that a natural null variant of the SVP protein disrupts its normal regulatory interactions with target genes, including GRF3, CYP707A1/3, and AtBG1, leading to increased leaf size, enhanced tolerance to humid conditions, and changed in flowering time in humid conditions in A. thaliana. Remarkably, polymorphic variations in this gene have been traced back to early A. thaliana populations, providing a genetic foundation and plasticity for subsequent colonization of diverse habitats by influencing multiple traits. These findings advance our understanding of how plants rapidly adapt to changing environments by virtue of the pleiotropic effects of individual genes on multiple trait alterations.

Systematic identification and screening of functional lncRNAs during planarian regeneration
Baijie Jin, Nannan Li, Lina Pang, Jing Xiao, Ziyi Lin, Ning Li, Zimei Dong, Guangwen Chen, Fei Yu, Dezeng Liu
, doi: 10.1016/j.jgg.2023.08.003
摘要:
Deciphering the evolution and complexity of wheat germplasm from a genomic perspective
Zihao Wang, Lingfeng Miao, Yongming Chen, Huiru Peng, Zhongfu Ni, Qixin Sun, Weilong Guo
, doi: 10.1016/j.jgg.2023.08.002
摘要:
Bread wheat provides an essential fraction of the daily calorific intake for humanity. Due to its huge and complex genome, progresses in studying on the wheat genome are substantially trailed behind those of other two major crops, rice and maize, for at least a decade. With rapid advances in genome assembling and reduced cost of high-throughput sequencing, emerging de novo genome assemblies of wheat and whole-genome sequencing data are leading a paradigm shift in wheat research. Here, we review recent progress in dissecting the complex genome and germplasm evolution of wheat since the release of the first high-quality wheat genome. New insights have been gained in the evolution of wheat germplasm during domestication and modern breeding progress, genomic variations at multiple scales contributing to the diversity of wheat germplasm, and complex transcriptional and epigenetic regulations of functional genes in polyploid wheat. Genomics databases and bioinformatics tools meeting the urgent needs of wheat genomics research are also summarized. The ever-increasing omics data, along with advanced tools and well-structured databases, are expected to accelerate deciphering the germplasm and gene resources in wheat for future breeding advances.
Gene therapy for monogenic disorders: challenges, strategies, and perspectives
Yi Zhang, Zhi-Ying Wu
, doi: 10.1016/j.jgg.2023.08.001
摘要:

Monogenic disorders refer to a group of human diseases caused by mutations in single genes. While disease-modifying therapies have offered some relief to symptoms and delayed progression for some monogenic diseases, most of these diseases still lack effective treatments. In recent decades, gene therapy has emerged as a promising therapeutic strategy for genetic disorders. Researchers have developed various gene manipulation tools and gene delivery systems to treat monogenic diseases. Despite this progress, concerns about inefficient delivery, persistent expression, immunogenicity, toxicity, capacity limitation, genomic integration, and limited tissue specificity still need to be addressed. This review gives an overview of commonly used gene therapy and delivery tools, along with the challenges they face and the potential strategies to counter them.

GeMemiOM-the first curated database on genes, putative methylation study targets, and microRNA targets for otitis media
Kondyarpu Abhishek, Bineet Kumar Mohanta, Pratima Kumari, Anshuman Dixit, Venkat Ramchander Puppala
, doi: 10.1016/j.jgg.2023.07.010
摘要:
Translation machinery: the basis of translational control
Shu Yuan, Guilong Zhou, Guoyong Xu
, doi: 10.1016/j.jgg.2023.07.009
摘要:

Messenger RNA (mRNA) translation consists of initiation, elongation, termination, and ribosome recycling, carried out by the translation machinery, primarily including tRNAs, ribosomes, and translation factors (TrFs). Translational regulators transduce signals of growth and development, as well as biotic and abiotic stresses, to the translation machinery, where global or selective translational control occurs to modulate mRNA translation efficiency (TrE). As the basis of translational control, the translation machinery directly determines the quality and quantity of newly synthesized peptides and, ultimately, the cellular adaption. Thus, regulating the availability of diverse machinery components is reviewed as the central strategy of translational control. We provide classical signaling pathways (e.g., integrated stress responses) and cellular behaviors (e.g., liquid-liquid phase separation) to exemplify this strategy within different physiological contexts, particularly during host-microbe interactions. With new technologies developed, further understanding this strategy will speed up translational medicine and translational agriculture.

ABE-induced PDGFD start codon silencing unveils new insights into the genetic architecture of sheep fat tails
Peter Kalds, Shuhong Huang, Siyuan Xi, Yumeng Fang, Yawei Gao, Shiwei Zhou, Kexin Sun, Chao Li, Bei Cai, Yao Liu, Yige Ding, Qifang Kou, Tad Sonstegard, Björn Petersen, Stephen Kemp, Baohua Ma, Jian-Lin Han, Yulin Chen, Xiaolong Wang
, doi: 10.1016/j.jgg.2023.07.008
摘要:
Current therapies for osteoarthritis and prospects of CRISPR-based genome, epigenome, and RNA editing in osteoarthritis treatment
Yuxi Chen, Xiao Luo, Rui Kang, Kaixin Cui, Jianping Ou, Xiya Zhang, Puping Liang
, doi: 10.1016/j.jgg.2023.07.007
摘要:

Osteoarthritis (OA) is one of the most common degenerative joint diseases worldwide, causing pain, disability, and decreased quality of life. The balance between regeneration and inflammation-induced degradation results in multiple etiologies and complex pathogenesis of OA. Currently, there is a lack of effective therapeutic strategies for OA treatment. With the development of CRISPR-based genome, epigenome, and RNA editing tools, OA treatment has been improved by targeting genetic risk factors, activating chondrogenic elements, and modulating inflammatory regulators. Supported by cell therapy and in vivo delivery vectors, genome, epigenome, and RNA editing tools may provide a promising approach for personalized OA therapy. This review summarizes CRISPR-based genome, epigenome, and RNA editing tools that can be applied to the treatment of OA and provides new insights into the development of CRISPR-based therapeutics for OA treatment. Moreover, in-depth evaluations of the efficacy and safety of these tools in human OA treatment are needed.

The nodule-specific transcriptional repressor Top Hub 4 regulates nodule structure and nitrogen fixation capacity in soybean
Kui Ge, Qi Lv, Shengcai Chen, Zhenhao Guo, Yaqi Peng, Yimian Chen, Shiyong Sun, Xuelu Wang
, doi: 10.1016/j.jgg.2023.07.005
摘要:
LSM14B coordinates protein component expression in the P-body and controls oocyte maturation
Huiru Zhang, Tao Zhang, Xiang Wan, Chang Chen, Shu Wang, Dongdong Qin, Lufan Li, Luping Yu, Xin Wu
, doi: 10.1016/j.jgg.2023.07.006
摘要:
The generation of mature and healthy oocytes is the most critical event in the entire female reproductive process, and the mechanisms regulating this process remain to be studied. Here, we demonstrate that LSM family member 14B (LSM14B) regulates oocyte maturation, and the loss of LSM14B in mouse ovaries leads to abnormal oocyte MII arrest and female infertility. Next, we find the aberrant transcriptional activation, indicated by abnormal non-surrounded nucleolus (NSN) and surrounded nucleolus (SN) oocyte proportions, and abnormal chromosome assembly and segregation in Lsm14b-deficient mouse oocytes. The global transcriptome analysis suggests that many transcripts involved in cytoplasmic processing body (P-body) function are altered in Lsm14b-deficient mouse oocytes. Deletion of Lsm14b results in the expression and/or localization changes of P-body components (such as LSM14A, DCP1A, and 4E-T). Notably, DDX6, a key component of the P-body, is downregulated and accumulates in the nuclei in Lsm14b-deficient mouse oocytes. Taken together, our data suggest that LSM14B links mouse oocyte maturation to female fertility through regulation of the P-body.
Genetic and lipidomic analyses reveal the key role of lipid metabolism for cold tolerance in maize
Lei Gao, Haifang Jiang, Minze Li, Danfeng Wang, Hongtao Xiang, Rong Zeng, Limei Chen, Xiaoyan Zhang, Jianru Zuo, Shuhua Yang, Yiting Shi
, doi: 10.1016/j.jgg.2023.07.004
摘要:
Lipid remodeling is crucial for cold tolerance in plants. However, the precise alternations of lipidomics during cold responses remains elusive, especially in maize (Zea mays L.). In addition, the key genes responsible for cold tolerance in maize lipid metabolism have not been identified. Here, we integrate lipidomic, transcriptomic, and genetic analysis to determine the profile of lipid remodeling caused by cold stress. We find that the homeostasis of cellular lipid metabolism is essential for maintaining cold tolerance of maize. Also, we detect 213 lipid species belonging to 14 major classes, covering phospholipids, glycerides, glycolipids, and free fatty acids. Various lipid metabolites undergo specific and selective alterations in response to cold stress, especially mono/di-unsaturated lysophosphatidic acid, lysophosphatidylcholine, phosphatidylcholine, and phosphatidylinositol, as well as polyunsaturated phosphatidic acid, monogalactosyldiacylglycerol, diacylglycerol, and triacylglycerol. In addition, we identify a subset of key enzymes, including ketoacyl-ACP synthase II, acyl-carrier protein 2, glycerol-3-phosphate acyltransferase, and stearoyl-ACP desaturase 2 involved in glycerolipid biosynthetic pathways are positive regulators of maize cold tolerance. These results reveal a comprehensive lipidomic profile during the cold response of maize and provide genetic resources for enhancing cold tolerance in crops.
Integrating genome-wide association study with a multi-tissue transcriptome analysis provides insights into the genetic architecture of teat traits in pigs
Chen Wei, Xiaodian Cai, Shuqi Diao, Jinyan Teng, Zhiting Xu, Wenjing Zhang, Haonan Zeng, Zhanming Zhong, Xibo Wu, Yahui Gao, Jiaqi Li, Zhe Zhang
, doi: 10.1016/j.jgg.2023.07.003
摘要:
Protein post-translational modifications in auxin signaling
Xiankui Cui, Junxia Wang, Ke Li, Bingsheng Lv, Bingkai Hou, Zhaojun Ding
, doi: 10.1016/j.jgg.2023.07.002
摘要:
Protein post-translational modifications (PTMs), such as ubiquitination, phosphorylation, and SUMOylation, are crucial for regulating protein stability, activity, subcellular localization, and binding with cofactors. Such modifications remarkably increase the variety and complexity of proteomes, which are essential for regulating numerous cellular and physiological processes. The regulation of auxin signaling is finely tuned in time and space to guide various plant growth and development. Accumulating evidence indicates that PTMs play critical roles in auxin signaling regulations. Thus, a thorough and systematic review of the functions of PTMs in auxin signal transduction will improve our profound comprehension of the regulation mechanism of auxin signaling and auxin-mediated various processes. This review discusses the progress of protein ubiquitination, phosphorylation, histone acetylation and methylation, SUMOylation, and S-nitrosylation in the regulation of auxin signaling.
Emerging roles and therapeutic potentials of sphingolipids in pathophysiology —— emphasis on fatty acyl heterogeneity
Jinming Mu, Sin Man Lam, Guanghou Shui
, doi: 10.1016/j.jgg.2023.06.006
摘要:
Sphingolipids not only exert structural roles in cellular membranes, but also act as signaling molecules in various physiological and pathological processes. A myriad of studies have shown that abnormal levels of sphingolipids and their metabolic enzymes are associated with a variety of human diseases. Moreover, blood sphingolipids can also be used as biomarkers for disease diagnosis. This review summarizes the biosynthesis, metabolism, and pathological roles of sphingolipids, with emphasis on the biosynthesis of ceramide, the precursor for the biosynthesis of complex sphingolipids with different fatty acyl chains. The possibility of using sphingolipids for disease prediction, diagnosis, and treatment is also discussed. Targeting endogenous ceramides and complex sphingolipids along with their specific fatty acyl chain to promote future drug development will also be discussed.
Differential regulation of JAK1 expression by ETS1 associated with predisposition to primary biliary cholangitis
Peng Jiang, Chan Wang, Mingming Zhang, Ye Tian, Weifeng Zhao, Junyi Xin, Yexi Huang, Zhibin Zhao, Wenjuan Sun, Jie Long, Ruqi Tang, Fang Qiu, Xingjuan Shi, Yi Zhao, Li Zhu, Na Dai, Lei Liu, Xudong Wu, Jinshan Nie, Bo Jiang, Youlin Shao, Yueqiu Gao, Jianjiang Yu, Zhigang Hu, Zhidong Zang, Yuhua Gong, Yaping Dai, Lan Wang, Ningling Ding, Ping Xu, Sufang Chen, Lu Wang, Jing Xu, Luyao Zhang, Junyan Hong, Ruonan Qian, Hu Li, Xuan Jiang, Congwei Chen, Wenyan Tian, Jian Wu, Yuzhang Jiang, Chongxu Han, Kui Zhang, Hong Qiu, Li Li, Hong Fan, Liming Chen, Jianqiong Zhang, Zhongsheng Sun, Xiao Han, Zhenhua Dai, Erguang Li, M. Eric Gershwin, Zhexiong Lian, Xiong Ma, Michael F. Seldin, Weichang Chen, Meilin Wang, Xiangdong Liu
, doi: 10.1016/j.jgg.2023.06.004
摘要:
Gain of function screen of PATs reveals an essential role of Hip14 in Drosophila host defense
Zhu Deng, Hui Chen, Lingling Xiao, Haolan Jin, Qinhao Zhang, Renjie Jiao, Chuanxian Wei
, doi: 10.1016/j.jgg.2023.06.003
摘要:
Ancient mitochondrial genome depicts sheep maternal dispersal and migration in eastern Asia
Liu Yang, Xing Zhang, Yaning Hu, Piao Zhu, Hua Li, Zhenyu Peng, Hai Xiang, Xinying Zhou, Xingbo Zhao
, doi: 10.1016/j.jgg.2023.06.002
摘要:
Sheep have been one of the most important groups of animals since ancient times. However, the knowledge of their migration routes and genetic relationships is still poorly understood. To investigate sheep maternal migration histories alongside Eurasian communications routes, in this study, we obtain mitochondrial genomes (mitogenomes) from 17 sheep remains in 6 Chinese sites and 1 Uzbekistan site dated 4429–3100 years before present (BP). By obtaining the mitogenomes from the sheep (4429–3556 years old) found in Tongtian Cave site in Xinjiang, Altai region of northwest China, our results support the emergence of haplogroup C sheep in Xinjiang as early as 4429–3556 BP. The combined phylogenetic analyses with extant ancient and modern sheep mitogenomes suggest that the Uzbekistan-Altai region might have been a migration hub for early sheep in eastern Asia. At least two migration events have taken place for sheep crossing Eurasia to China, one passing by Uzbekistan and Northwest China to the middle and lower reaches of the Yellow River at approximately 4000 BP and another following the Altai region to middle Inner Mongolia from 4429–2500 BP. Overall, this study provides further evidence for early sheep utilization and migration patterns in eastern Asia.
Thyroid-stimulating hormone (TSH)-thyroid hormone (TH) signaling contributes to circadian regulation through repressing clock2/npas2 in zebrafish
, doi: 10.1016/j.jgg.2023.05.015
摘要:
Thyroid-stimulating hormone (TSH) is important for the thyroid gland, development, growth, and metabolism. Defects in TSH production or the thyrotrope cells within the pituitary gland cause congenital hypothyroidism (CH), resulting in growth retardation and neurocognitive impairment. While human TSH is known to display rhythmicity, the molecular mechanisms underlying the circadian regulation of TSH and the effects of TSH-thyroid hormone (TH) signaling on the circadian clock remain elusive. Here we show that TSH, T4, T3, and tshba display rhythmicity in both larval and adult zebrafish and tshba is regulated directly by the circadian clock via both E’-box and D-box. Zebrafish tshba mutants manifest congenital hypothyroidism, with the characteristics of low levels of T4 and T3 and growth retardation. Loss of tshba or overexpression of tshba alters the rhythmicity of locomotor activities and expression of core circadian clock genes and hypothalamic-pituitary-thyroid (HPT) axis-related genes. Furthermore, TSH-TH signaling regulates clock2/npas2 via the TRE in its promoter, and transcriptome analysis revealed extensive functions of Tshba in zebrafish. Together, our results demonstrate that zebrafish tshba is a direct target of the circadian clock and in turn plays critical roles in circadian regulation along with other functions.
H3K36me3 and H2A.Z coordinately modulate flowering time in Arabidopsis
Xiaoru Ji, Wenqian Liu, Fei Zhang, Yanhua Su, Yong Ding, Haitao Li
, doi: 10.1016/j.jgg.2023.05.012
摘要:
Potential and progress of studying mountain biodiversity by means of butterfly genetics and genomics
Shuting Wang, Marco Girardello, Wei Zhang
, doi: 10.1016/j.jgg.2023.06.001
摘要:
Mountains are rich in biodiversity, and butterflies are species-rich and have a good ecological and evolutionary research foundation. This review addresses the potential and progress of studying mountain biodiversity using butterflies as a model. We discuss the uniqueness of mountain ecosystems, factors influencing the distribution of mountain butterflies, representative genetic and evolutionary models in butterfly research, and evolutionary studies of mountain biodiversity involving butterfly genetics and genomics. Finally, we demonstrate the necessity of studying mountain butterflies and propose future perspectives. This review provides insights for studying the biodiversity of mountain butterflies as well as a summary of research methods for reference.
Protein O-GlcNAcylation homeostasis regulates facultative heterochromatin to fine-tune sog-Dpp signaling during Drosophila early embryogenesis
Yaowen Zhang, Haibin Yu, Dandan Wang, Xiaoyun Lei, Yang Meng, Na Zhang, Fang Chen, Lu Lv, Qian Pan, Hongtao Qin, Zhuohua Zhang, Daan M.F. van Aalten, Kai Yuan
, doi: 10.1016/j.jgg.2023.05.014
摘要:
Protein O-GlcNAcylation is a monosaccharide posttranslational modification maintained by two evolutionarily conserved enzymes, O-GlcNAc transferase (OGT) and O-GlcNAcase (OGA). Mutations in human OGT have recently been associated with neurodevelopmental disorders, although the mechanisms linking O-GlcNAc homeostasis to neurodevelopment are not understood. Here, we investigate the effects of perturbing protein O-GlcNAcylation using transgenic Drosophila lines that overexpress a highly active O-GlcNAcase. We reveal that temporal reduction of protein O-GlcNAcylation in early embryos leads to reduced brain size and olfactory learning in adult Drosophila. Downregulation of O-GlcNAcylation induced by the exogenous O-GlcNAcase activity promotes nuclear foci formation of Polycomb-group protein Polyhomeotic and the accumulation of excess K27 trimethylation of histone H3 (H3K27me3) at the mid-blastula transition. These changes interfere with the zygotic expression of several neurodevelopmental genes, particularly short of gastrulation (sog), a component of an evolutionarily conserved sog-Dpp signaling system required for neuroectoderm specification. Our findings highlight the importance of early embryonic O-GlcNAcylation homeostasis for the fidelity of facultative heterochromatin redeployment and initial cell fate commitment of neuronal lineages, suggesting a possible mechanism underpinning OGT-associated intellectual disability.
Zebrafish ppp1r21 mutant as a model for the study of primary biliary cholangitis
Chaoying Wu, Wenfeng Zhang, Yiyu Luo, Chaoqing Cheng, Xinjuan Wang, Yan Jiang, Shuang Li, Lingfei Luo, Yun Yang
, doi: 10.1016/j.jgg.2023.05.013
摘要:
Primary biliary cholangitis (PBC) is an autoimmune cholestatic liver disease that progresses to fibrosis and cirrhosis, resulting from the gradual destruction of intrahepatic bile ducts. Exploring genetic variants associated with PBC is essential to understand the pathogenesis of PBC. Here we identify a zebrafish balloon dog (blg) mutant with intrahepatic bile duct branching defects, exhibiting several key pathological PBC-like features, including immunodominant autoantigen PDC-E2 production, cholangiocyte apoptosis, immune cell infiltration, inflammatory activation, and liver fibrosis. blg encodes the protein phosphatase 1 regulatory subunit 21 (Ppp1r21), which is enriched in the liver and its peripheral tissues and plays a vital role in the early intrahepatic bile duct formation stage. Further studies show an excessive activation of the PI3K/AKT/mTOR pathway in the hepatic tissues in the mutant, while treatment with the pathway inhibitor LY294002 and rapamycin partially rescues intrahepatic bile duct branching defects and alleviate the PBC-like symptoms. These findings implicate the potential role of the Ppp1r21-mediated PI3K/AKT/mTOR pathway in the pathophysiology of PBC.
Genomic allele-specific base editing with imperfect gRNA
Xu-Xu Chen, Dong-Dong Zhao, Xue-Ting Hou, Ju Li, Shi-Ming Pu, Ji-Dong Fei, Si-Wei Li, Zu-Ping Zhou, Chang-Hao Bi, Xue-Li Zhang
, doi: 10.1016/j.jgg.2023.05.010
摘要:
Reconstructing cell lineage trees with genomic barcoding: approaches and applications
Zizhang Li, Wenjing Yang, Peng Wu, Yuyan Shan, Xiaoyu Zhang, Feng Chen, Junnan Yang, Jian-Rong Yang
, doi: 10.1016/j.jgg.2023.05.011
摘要:
In multicellular organisms, developmental history of cell divisions and functional annotation of terminal cells can be organized into a cell lineage tree (CLT). The reconstruction of the CLT has long been a major goal in developmental biology and other related fields. Recent technological advancements, especially those in editable genomic barcodes and single-cell high-throughput sequencing, have sparked a new wave of experimental methods for reconstructing CLTs. Here we review the existing experimental approaches to the reconstruction of CLT, which are broadly categorized as either image-based or DNA barcode-based methods. In addition, we present a summary of the related literatures based on the biological insight provided by the obtained CLTs. Moreover, we discuss the challenges that will arise as more and better CLT data become available in the near future. Genomic barcoding-based CLT reconstructions and analyses, due to their wide applicability and high scalability, offer the potential for novel biological discoveries, especially those related to general and systemic properties of the developmental process.
GAEP: a comprehensive genome assembly evaluating pipeline
Yong Zhang, Hong-Wei Lu, Jue Ruan
, doi: 10.1016/j.jgg.2023.05.009
摘要:
With the rapid development of sequencing technologies, especially the maturity of third-generation sequencing technologies, there has been a significant increase in the number and quality of published genome assemblies. The emergence of these high-quality genomes has raised higher requirements for genome evaluation. Although numerous computational methods have been developed to evaluate assembly quality from various perspectives, the selective use of these evaluation methods can be arbitrary and inconvenient for fairly comparing the assembly quality. To address this issue, we have developed the Genome Assembly Evaluating Pipeline (GAEP), which provides a comprehensive assessment pipeline for evaluating genome quality from multiple perspectives, including continuity, completeness, and correctness. Additionally, GAEP includes new functions for detecting misassemblies and evaluating the assembly redundancy, which performs well in our testing. GAEP is publicly available at https://github.com/zy-optimistic/GAEP under the GPL3.0 License. With GAEP, users can quickly obtain accurate and reliable evaluation results, facilitating the comparison and selection of high-quality genome assemblies.
HvMPK4 phosphorylates HvWRKY1 to enhance its suppression of barley immunity to powdery mildew fungus
Pengya Xue, Ling Zhang, Renchun Fan, Yanan Li, Xinyun Han, Ting Qi, Lifang Zhao, Deshui Yu, Qian-Hua Shen
, doi: 10.1016/j.jgg.2023.05.005
摘要:
Mitogen-activated protein kinase (MAPK) cascades play important roles in disease resistance in model plant species. However, the functions of MAPK signaling pathways in crop disease resistance are largely unknown. Here we report the function of HvMKK1-HvMPK4-HvWRKY1 module in barley immune system. HvMPK4 is identified to play a negative role in barley immune response against Bgh, as virus-induced gene silencing (VIGS) of HvMPK4 results in enhanced disease resistance whilst stably overexpressing HvMPK4 leads to super-susceptibility to Bgh infection. Furthermore, the barley MAPK kinase HvMKK1 is found to specifically interact with HvMPK4, and the activated HvMKK1DD variant specifically phosphorylates HvMPK4 in vitro. Moreover, the transcription factor HvWRKY1 is identified to be a downstream target of HvMPK4, and phosphorylated by HvMPK4 in vitro in the presence of HvMKK1DD. Phosphorylation assay coupled with mutagenesis analyses identifies S122, T284, and S347 in HvWRKY1 as the major residues phosphorylated by HvMPK4. HvWRKY1 is phosphorylated in barley at early stages of Bgh infection, which enhances its suppression on barley immunity likely due to enhanced DNA-binding and transcriptional repression activity. Our data suggest that the HvMKK1-HvMPK4 kinase pair acts upstream of HvWRKY1 to negatively regulate barley immunity against powdery mildew.
Genetic interrogation of phenotypic plasticity informs genome-enabled breeding in cotton
Yuefan Huang, Zhengyang Qi, Jianying Li, Jiaqi You, Xianlong Zhang, Maojun Wang
, doi: 10.1016/j.jgg.2023.05.004
摘要:
Phenotypic plasticity, or the ability to adapt to and thrive in changing climates and variable environments, is essential for developmental programs in plants. Despite its importance, the genetic underpinnings of phenotypic plasticity for key agronomic traits remain poorly understood in many crops. In this study, we aimed to fill this gap by using genome-wide association study (GWAS) to identify genetic variations associated with phenotypic plasticity in upland cotton (Gossypium hirsutum L.). We identified 73 additive QTLs, 32 dominant QTLs and 6799 epistatic QTLs associated with 20 traits. We also identified 117 additive QTLs, 28 dominant QTLs and 4691 epistatic QTLs associated with phenotypic plasticity in 19 traits. Our findings reveal new genetic factors, including additive, dominant, and epistatic QTLs, that are linked to phenotypic plasticity and agronomic traits. Meanwhile, we find that the genetic factors controlling the mean phenotype and phenotypic plasticity are largely independent in upland cotton, indicating the potential for simultaneous improvement. Additionally, we envision a genomic design strategy by utilizing the identified QTLs to facilitate cotton breeding. Taken together, our study provides new insights into the genetic basis of phenotypic plasticity in cotton, which should be valuable for future breeding.
eQTL studies: from bulk tissues to single cells
Jingfei Zhang, Hongyu Zhao
, doi: 10.1016/j.jgg.2023.05.003
摘要:
An expression quantitative trait locus (eQTL) is a chromosomal region where genetic variants are associated with the expression levels of specific genes that can be both nearby or distant. The identifications of eQTLs for different tissues, cell types, and contexts have led to a better understanding of the dynamic regulations of gene expressions and implications of functional genes and variants for complex traits and diseases. Although most eQTL studies have been performed on data collected from bulk tissues, recent studies have demonstrated the importance of cell-type-specific and context-dependent gene regulations in biological processes and disease mechanisms. In this review, we discuss statistical methods that have been developed to enable the detection of cell-type-specific and context-dependent eQTLs from bulk tissues, purified cell types, and single cells. We also discuss the limitations of the current methods and future research opportunities.
Correction of a CADASIL point mutation using adenine base editors in hiPSCs and blood vessel organoids
Jingwen Wang, Lei Zhang, Guanglan Wu, Jinni Wu, Xinyao Zhou, Xiaolin Chen, Yongxia Niu, Yiren Jiao, Qianyi Liu, Puping Liang, Guang Shi, Xueqing Wu, Junjiu Huang
, doi: 10.1016/j.jgg.2023.04.013
摘要:
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a monogenic small vessel disease caused by mutations in the NOTCH3 gene. However, the pathogenesis of CADASIL remains unclear, and patients have limited treatment options. Here, we use human induced pluripotent stem cells (hiPSCs) generated from the peripheral blood mononuclear cells (PBMCs) of a patient with CADASIL carrying a heterozygous NOTCH3 mutation (c.1261C>T, p.R421C) to develop a disease model. The correction efficiency of different adenine base editors (ABEs) is tested using the HEK293T-NOTCH3 reporter cell line. ABEmax is selected based on its higher efficiency and minimization of predicted off-target effects. Vascular smooth muscle cells (VSMCs) differentiated from CADASIL hiPSCs show NOTCH3 deposition and abnormal actin cytoskeleton structure, and the abnormalities are recovered in corrected hiPSC-derived VSMCs. Furthermore, CADASIL blood vessel organoids generated for in vivo modeling show altered expression of genes related to disease phenotypes, including the downregulation of cell adhesion, extracellular matrix organization, and vessel development. The dual adeno-associated virus (AAV) split-ABEmax system is applied to the genome editing of vascular organoids with an average editing efficiency of 8.82%. Collectively, we present potential genetic therapeutic strategies for patients with CADASIL using blood vessel organoids and the dual AAV split-ABEmax system.
Inhibition of the maize salt overly sensitive pathway by ZmSK3 and ZmSK4
Jianfang Li, Xueyan Zhou, Yan Wang, Shu Song, Liang Ma, Qian He, Minhui Lu, Kaina Zhang, Yongqing Yang, Qian Zhao, Weiwei Jin, Caifu Jiang, Yan Guo
, doi: 10.1016/j.jgg.2023.04.010
摘要:
Soil salinity is a worldwide problem that adversely affects plant growth and crop productivity. The salt overly sensitive (SOS) pathway is evolutionarily conserved and essential for plant salt tolerance. In this study, we reveal how the maize shaggy/glycogen synthase kinase 3 (GSK3)-like kinases ZmSK3 and ZmSK4, orthologs of brassinosteroid insensitive 2 (BIN2) in Arabidopsis thaliana, regulate the maize SOS pathway. ZmSK3 and ZmSK4 interact with and phosphorylate ZmSOS2, a core member of the maize SOS pathway. The mutants defective in ZmSK3 or ZmSK4 are hyposensitive to salt stress, with higher salt-induced activity of ZmSOS2 than that in the wild type. Furthermore, the Ca2+ sensors ZmSOS3 and ZmSOS3-like calcium binding protein 8 (ZmSCaBP8) activate ZmSOS2 to maintain Na+/K+ homeostasis under salt stress, and may participate in the regulation of ZmSOS2 by ZmSK3 and ZmSK4. These findings discover the regulation of the maize SOS pathway and provide important gene targets for breeding salt-tolerant maize.
PIFs interact with SWC6 to regulate H2A.Z deposition and photomorphogenesis in Arabidopsis
Huiru Chen, Wanting Wang, Xiao Chen, Yake Niu, Yuanyuan Qi, Ze Yu, Minyu Xiong, Pengbo Xu, Wenxiu Wang, Tongtong Guo, Hong-Quan Yang, Zhilei Mao
, doi: 10.1016/j.jgg.2023.04.008
摘要:
Light is an essential environmental signal perceived by a board range of photoreceptors in plants. Among them, the red/far-red light receptor phytochromes function to promote photomorphogenesis, which is critical to the survival of seedlings after seeds germination. The bHLH transcription factors PHYTOCHROME-INTERACTING FACTORs (PIFs) are the pivotal direct downstream components of phytochromes. H2A.Z is a highly conserved histone variant regulating gene transcription, and its incorporation into nucleosomes is catalyzed by SWR1 complex, in which SWC6 and ARP6 serve as core subunits. Here, we show that PIFs physically interact with SWC6 in vitro and in vivo, leading to the disassociation of HY5 from SWC6. SWC6 and ARP6 regulate hypocotyl elongation partly through PIFs in red light. PIFs and SWC6 co-regulate the expression of auxin-responsive genes such as IAA6, IAA19, IAA20 and IAA29, and repress H2A.Z deposition at IAA6 and IAA19 in red light. Based on previous studies and our findings, we propose that PIFs inhibit photomorphogenesis, at least in part, through repression of H2A.Z deposition at auxin-responsive genes mediated by the interactions of PIFs with SWC6 and promotion of their expression in red light.
The local density of H3K9me3 dictates the stability of HP1α condensates-mediated genomic interactions
Ying Feng, Li Guo, Chen Yang, Hui Zheng, Xiao Xiao, Hanhui Ma
, doi: 10.1016/j.jgg.2023.04.006
摘要:
The human genome can be demarcated into domains based on distinct epigenetic states. The trimethylation of histone H3 lysine 9 (H3K9me3) is essential for the formation of constitutive heterochromatin nanodomains. However, the extent to which genomic regions require specific densities or degrees of H3K9me3 for stable interactions remains unclear. Here we utilize CRISPR-based DNA imaging to investigate the role of endogenous or ectopic H3K9me3 in chromatin dynamics and genomic interactions. We select three loci (IDR3, TCF3, and PR1) with distinct levels of H3K9me3 to examine the genomic interactions and association with endogenous HP1α condensates. Our results demonstrate a positive correlation between the levels of H3K9me3 at the loci and their association with HP1α condensates. By dual-color labeling and long-term tracking of IDR3 and PR1 loci, we find a periodical association between the two ranging from one to three hours. Epigenetic perturbation-induced Genome organization (EpiGo)-KRAB introduces ∼20 kilobases of H3K9me3 at the TCF3 locus, which is sufficient to establish a stable association between TCF3 and HP1α condensates. In addition, EpiGo-mediated H3K9me3 also leads to stable genomic interaction between IDR3 and TCF3. Briefly, these data suggest that the density of H3K9me3 could dictate the stability of interactions between genomic loci and HP1α condensates.
TabHLH95-TaNF-YB1 module promotes grain starch synthesis in bread wheat
Yunchuan Liu, Wei Xi, Xiaolu Wang, Huifang Li, Hongxia Liu, Tian Li, Jian Hou, Xu Liu, Chenyang Hao, Xueyong Zhang
, doi: 10.1016/j.jgg.2023.04.002
摘要:
Starch is the most abundant substance in wheat (Triticum aestivum L.) endosperm and provides the major carbohydrate energy for human daily life. Starch synthesis-related (SSR) genes are believed to be spatiotemporally specific, but their transcriptional regulation remains unclear in wheat. Here, we investigate the role of the basic helix-loop-helix (bHLH) transcription factor TabHLH95 in starch synthesis. TabHLH95 is preferentially expressed in the developing grains in wheat and encodes a nucleus localized protein without autoactivation activity. The Tabhlh95 knockout mutants display smaller grain size and less starch content than wild type, whereas overexpression of TabHLH95 enhances starch accumulation and significantly improves thousand grain weight. Transcriptome analysis reveals that the expression of multiple SSR genes is significantly reduced in the Tabhlh95 mutants. TabHLH95 binds to the promoters of ADP-glucose pyrophosphorylase large subunit 1 (AGPL1-1D/-1B), AGPL2-5D and isoamylase (ISA1-7D) and enhances their transcription. Intriguingly, TabHLH95 interacts with nuclear factor Y (NF-Y) family transcription factors TaNF-YB1, thereby synergistically regulating starch synthesis. These results suggest that the TabHLH95-TaNF-YB1 complex positively modulates starch synthesis and grain weight by regulating the expression of a subset of SSR genes, thus providing a good potential approach for genetic improvement of grain productivity in wheat.
Rare variants in FANCJ induce premature ovarian insufficiency in humans and mice
Xi Yang, Shuting Ren, Jialin Yang, Yuncheng Pan, Zixue Zhou, Qing Chen, Yunzheng Fang, Lingyue Shang, Feng Zhang, Xiaojin Zhang, Yanhua Wu
, doi: 10.1016/j.jgg.2023.03.013
摘要:
Rare loss-of-function variants in FLNB cause non-syndromic orofacial clefts
Wenbin Huang, Shiying Zhang, Jiuxiang Lin, Yi Ding, Nan Jiang, Jieni Zhang, Huaxiang Zhao, Feng Chen
, doi: 10.1016/j.jgg.2023.03.012
摘要:
Orofacial clefts (OFCs) are the most common congenital craniofacial disorders, of which the etiology is closely related to rare coding variants. FLNB is an actin-binding protein implicated in bone formation. FLNB mutations have been identified in several types of syndromic OFCs and previous studies suggest a role of FLNB in the onset of non-syndromic OFCs (NSOFCs). Here, we report two rare heterozygous variants (p.P441T and p.G565R) in FLNB in two unrelated hereditary families with NSOFCs. Bioinformatics analysis suggests that both variants may disrupt the function of FLNB. In mammalian cells, p.P441T and p.G565R variants are less potent to induce cell stretches than wild type FLNB, suggesting that they are loss-of-function mutations. Immunohistochemistry analysis demonstrates that FLNB is abundantly expressed during palatal development. Importantly, Flnb-/- embryos display cleft palates and previously defined skeletal defects. Taken together, our findings reveal that FLNB is required for development of palates in mice and FLNB is a bona fide causal gene for NSOFCs in humans.
GAN-GMHI: a generative adversarial network with high discriminative power for microbiome-based disease prediction
Yuxue Li, Gang Xie, Yuguo Zha, Kang Ning
, doi: 10.1016/j.jgg.2023.03.009
摘要:
Maternal genetic history of ancient Tibetans over the past 4000 years
Ganyu Zhang, Can Cui, Shargan Wangdue, Hongliang Lu, Honghai Chen, Lin Xi, Wei He, Haibing Yuan, Tinley Tsring, Zujun Chen, Feng Yang, Tashi Tsering, Shuai Li, Norbu Tashi, Tsho Yang, Yan Tong, Xiaohong Wu, Linhui Li, Yuanhong He, Peng Cao, Qingyan Dai, Feng Liu, Xiaotian Feng, Tianyi Wang, Ruowei Yang, Wanjing Ping, Ming Zhang, Xing Gao, Yichen Liu, Wenjun Wang, Qiaomei Fu
, doi: 10.1016/j.jgg.2023.03.007
摘要:
The settlement of the Tibetan Plateau epitomizes human adaptation to a high-altitude environment that poses great challenges to human activity. Here, we reconstructed a 4000-year maternal genetic history of Tibetans using 128 ancient mitochondrial genome data from 37 sites in Tibet. The phylogeny of haplotypes M9a1a, M9a1b, D4g2, G2a’c, and D4i show ancient Tibetans shared the most recent common ancestor (TMRCA) with ancient Middle and Upper Yellow River populations around the Early and Middle Holocene. In addition, the connections between Tibetans and Northeastern Asians varied over the past 4000 years, with a stronger matrilineal connection between the two during 4000–3000 BP, and a weakened connection after 3000 BP, that coincident with climate change, followed by a reinforced connection after the Tubo period (1400-1100 BP). Besides, an over 4000-year matrilineal continuity was observed in some of the maternal lineages. We also found the maternal genetic structure of ancient Tibetans is correlated to the geography and interactions between ancient Tibetans and ancient Nepal and Pakistan populations. Overall, the maternal genetic history of Tibetans can be characterized as a long-term matrilineal continuity with frequent internal and external population interactions that were dynamically shaped by geography, climate changes, as well as historical events.
Deciphering spike architecture formation towards yield improvement in wheat
Xumei Luo, Yiman Yang, Xuelei Lin, Jun Xiao
, doi: 10.1016/j.jgg.2023.02.015
摘要:
Wheat is the most widely-grown crop globally, providing 20% of the daily consumed calories and protein content around the world. With the growing global population and frequent occurrence of extreme weather caused by climate change, ensuring adequate wheat production is essential for food security. The architecture of the inflorescence plays a crucial role in determining the grain number and size, which is a key trait for improving yield. Recent advances in wheat genomics and gene cloning techniques have improved our understanding of wheat spike development and its applications in breeding practices. Here, we summarize the genetic regulation network governing wheat spike formation, the strategies used for identifying and studying the key factors affecting spike architecture, and the progress made in breeding applications. Additionally, we highlight future directions that will aid in the regulatory mechanistic study of wheat spike determination and targeted breeding for grain yield improvement.
The CCT transcriptional activator Ghd2 constantly delays the heading date by upregulating CO3 in rice
Xiaowei Fan, Pengfei Wang, Feixiang Qi, Yong Hu, Shuangle Li, Jia Zhang, Liwen Liang, Zhanyi Zhang, Juhong Liu, Lizhong Xiong, Yonghzong Xing
, doi: 10.1016/j.jgg.2023.03.002
摘要:
CONSTANS, CO-like and TOC1 (CCT) family genes play important roles in regulating heading date, which exerts a large impact on the regional and seasonal adaptation of rice. Previous studies have shown that Grain number, plant height, and heading date2 (Ghd2) exhibits a negative response to drought stress by directly upregulating Rubisco activase and exerting a negative effect on heading date. However, the target gene of Ghd2 regulating heading date is still unknown. In this study, CO3 is identified by analyzing ChIP-seq data. Ghd2 activates CO3 expression by binding to the CO3 promoter through its CCT domain. EMSA experiments show that the motif CCACTA in the CO3 promoter was recognized by Ghd2. A comparison of the heading dates among plants with CO3 knocked out or overexpressed and double mutants overexpressing Ghd2 with CO3 knocked out shows that CO3 negatively and constantly regulates flowering by repressing the transcription of Ehd1, Hd3a and RFT1. In addition, the target genes of CO3 are explored via a comprehensive analysis of DAP-seq data and RNA-seq data. Taken together, these results suggest that Ghd2 directly binds to the downstream gene CO3, and the Ghd2-CO3 module constantly delays heading date via the Ehd1 mediated pathway.
Tongue coating microbiome reflects cardiovascular health and determines outcome in blood pressure intervention
Hairong Chen, Yue Ma, Min Li, Qingwei Li, Mengya Zhang, Zixiong Wang, Hongmei Liu, Jun Wang, Xiaolin Tong, Yixin Zeng
, doi: 10.1016/j.jgg.2023.01.003
摘要:
Key regulators of intestinal stem cells: diet, microbiota, and microbial metabolites
Chensi Yao, Xiaowen Gou, Chuanxi Tian, Lijuan Zhou, Rui Hao, Li Wan, Zeyu Wang, Min Li, Xiaolin Tong
, doi: 10.1016/j.jgg.2022.12.002
摘要:
Interactions between diet and the intestinal microbiome play an important role in human health and disease development. It is well known that such interactions, whether direct or indirect, trigger a series of metabolic reactions in the body. Evidence suggests that intestinal stem cells (ISCs), which are phenotypic precursors of various intestinal epithelial cells, play a significant role in the regulation of intestinal barrier function and homeostasis. The advent and evolution of intestinal organoid culture techniques have presented a key opportunity to study the association between the intestinal microenvironment and ISCs. As a result, the effects exerted by dietary factors, intestinal microbiomes, and their metabolites on the metabolic regulation of ISCs and the potential mechanisms underlying such effects are being gradually revealed. This review summarises the effects of different dietary patterns on the behaviour and functioning of ISCs and focuses on the cross-talk between intestinal microbiota, related metabolites, and ISCs, with the aim of fully understanding the relationship between these three factors and providing further insights into the complex mechanisms associated with ISCs in the human body. Gaining an understanding of these mechanisms may lead to the development of novel dietary interventions or drugs conducive to intestinal health.
A highly conserved amino acid in high molecular weight glutenin subunit 1Dy12 contributes to gluten functionality and processing quality in wheat
Changfeng Yang, Qian Chen, Mingming Xin, Zhenqi Su, Jinkun Du, Weilong Guo, Zhaorong Hu, Jie Liu, Huiru Peng, Zhongfu Ni, Qixin Sun, Yingyin Yao
, doi: 10.1016/j.jgg.2022.11.002
摘要:
Species- or genus-dependent immunostimulatory effects of gut-derived potential probiotics
Saisai Feng, Shunhe Wang, DingWu Qu, Jing Li, Fengwei Tian, Leilei Yu, Hao Zhang, Jianxin Zhao, Wei Chen, Qixiao Zhai
, doi: 10.1016/j.jgg.2022.11.001
摘要:

The immune regulatory effects of probiotics have been widely recognized to be strain-specific. However it is unknown if there is a species- or genus-dependent manner. In this study, we use an in vitro mesenteric lymph node (MLN) model to systematically evaluate the immunostimulatory effects of gut-derived potential probiotics. The results exhibite an obvious species or genus consensus immune response pattern. RNA-seq shows that T cell-dependent B cell activation and antibody responses may be inherent to this model. Of the five tested genera, Akkermansia spp. and Clostridium butyrium directly activate the immune response in vitro, as indicated by the secretion of interleukin-10. Bifidobacterium spp. and Bacteroides spp. activate immune response with the help of stimuli (anti-CD3 and anti-CD28 antibodies). Lactobacillus spp. blunt the immune response with or without stimuli. Further investigations show that the cell surface protein of A. muciniphila AH39, which may serve as a T cell receptor cognate antigen, might evoke an in vitro immune activation. In vivo, oral administration of A. muciniphila AH39 influences the proportion of T regulatory cells (Tregs) in MLNs and the spleen under homeostasis in both specific pathogen-free and germ-free mice. All these findings indicate the distinct effects of different genera or species of potential gut-derived probiotics on intestinal and systemic immunity.