中国畜牧兽医2013，Vol.40Issue(4)：45-49,5.
基于细胞色素b基因的大河乌猪群体遗传结构研究
Study on Genetic Structure of Dahe Black Pig Based on DNA Sequence Analyses of Cytochrome b Gene
摘要
Abstract
For revealing the level of genetic divergence and genetic structure of Dahe Black pig, this research was implemented using molecular biological methods that sequenced and analyzed the Cyt b DNA sequences based on 46 samples from 5 geographic populations of Qujing city. The AMOVA results showed that most of genetic variation (62. 63%) distributed within populations. This could indicate fully that the whole population genetic structure of this species was not evident because of significant gene flow among different populations. The results of neutrality tests further validated that the instable population structure of this whole group could be affected by the population expansion from the artificial selective breeding and introduction breeding. This instable population structure or lower genetic differentiation could be induced by the large-scale introduction and expanding breeding. The significant gene flow induced the genetic convergence in various geographical populations eventually, population expanding and population genetic diversity declined significantly. This study was expected to provide important scientific basis and data for the molecular genetic breeding of Dahe Black pig and for the manager's effective measures to protect the genetic resources of Dahe Black pig.关键词
大河乌猪/线粒体基因/细胞色素b/遗传多样性/遗传结构Key words
Dahe Black pig/mitochondrion gene/cytochrome b/ genetic diversity/genetic structure分类
农业科技引用本文复制引用
唐利洲,施晓东,丁伟,于龙,王俊杰,朱磊,郭松长..基于细胞色素b基因的大河乌猪群体遗传结构研究[J].中国畜牧兽医,2013,40(4):45-49,5.基金项目
云南省应用基础研究面上项目(2010ZC149) （2010ZC149）
曲靖师范学院重点项目(2009ZD004). （2009ZD004）
