江西农业大学学报2012，Vol.34Issue(1)：141-146,157,7.
长江下游放流鲢群体遗传多样性的微卫星标记分析
Analysis of Genetic Diversity among Silver the Artificially Released Populations of Carps in the Lower Reach of Yangtze River with Microsatellite Markers
摘要
Abstract
Twelve microsatellite markers were used to analyze the genetic diversity of four artificially released populations of sliver carps in the lower reach of Yangtze River. A total of 56 different alleles were found and the number of alleles in each locus ranged from 1 to 7. Ten loci (83. 33% ) were polymorphic. In the four populations, the values of average alleles and valid alleles were 3. 98 and 2. 384 0. The values of average observed and expected heterozygosity were 0. 467 6 and 0. 490 6 respectively, while the mean PIC was 0. 382 1. The genetic diversity of the four artificially released populations was about the same as the lower reach wild populations reported in past articles and significantly lower than that of the upper reach wild populations. The mean observed heterozygosity was lower than the corresponding mean expected heterozygosity, which showed inbreeding happened in some extent in the four silver carp artificially released populations. The genetic similarity coefficient of the four populations was 0.937 1 to 0.971 8 ,and the genetic distance was 0.028 2 to 0.062 8. Fst value ranged from 0. 027 5 to 0. 050 6, which indicated that the four populations were faintly differentiated.关键词
鲢/放流群体/微卫星/遗传多样性Key words
silver carp/ artificially released populations/ microsatellite/ genetic diversity分类
农业科技引用本文复制引用
张敏莹,徐东坡,刘凯,段金荣,施炜纲..长江下游放流鲢群体遗传多样性的微卫星标记分析[J].江西农业大学学报,2012,34(1):141-146,157,7.基金项目
公益性行业(农业)科研专项(200903048-03)和农业部财政项目(20100202-05) （农业）
