Microsatellite DNA Marker Analysis of Genetic Diversity in Wild Common Carp (Cyprinus carpio L.) Populations

Dayu Li^{a, b},
Dahai Kang^b,
Qianqian Yin^{a, b},
Xiaowen Sun^{a
, ,},
Liqun Liang^a

a.
Heilongjiang Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin 150070, China
b.
College of Aqua-life Science and Technology, Dalian Fisheries University, Dalian 116023, China

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Corresponding author: E-mail address: sunxw2002@163.com (Xiaowen Sun)

摘要

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Abstract: Thirty microsatellite loci were used for analyzing six wild populations of common carp (Cyprinus carpio L.). Observed () and expected () heterozygosity values, polymorphic information content (PIC), and number of effective alleles () were all detected. Genetic similarity index and genetic distance were computed based on the allele frequency. The Hardy-Weinberg Equilibrium was checked according to the test of χ². Genetic differentiation and hierarchical partition of genetic diversity were evaluated by and . A clustering dendrogram was made based on the results of UPGMA methods using the PHYLIP software package (version 3.63). There were totally 8,136 fragments ranging from 125 bp to 414 bp in length. Three to thirteen alleles were amplified in 30 loci and 210 alleles in all six populations. The average number of alleles in each locus was seven. The result showed that 1) the level of genetic variability was moderate in the six populations. Polymorphic information contents of the six wild common carp populations were 0.44, 0.52, 0.53, 0.57, 0.63, and 0.64 respectively. Effective alleles were from 1.04 to 4.72, the average numbers in each population were 2.19, 2.60, 2.42, 2.43, 2.45, and 2.33. The average expected heterozygosity values were 0.50, 0.59, 0.56, 0.56, 0.57, and 0.54 respectively; 2) the highest genetic similarity index that came from the populations of BR and ZL was 0.8511 and the lowest index was 0.6688, and it came from the populations of BR and HN. There was a correlation between the clustering result and the geographical distribution.
- molecular marker /
- microsatellite /
- population variety /
- common carp

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