长江三角洲白山羊群体间的基因流  

Gene Flow among Populations of the Yangtse River Delta White Goat

作　　者：王兰萍[1] 耿荣庆[1,2] 常洪[2] 杨章平[2] 孙伟[2] 冀德君[2] 王庆华[3] 

机构地区：[1]盐城师范学院生命科学与技术学院,江苏盐城224051 [2]扬州大学动物科学与技术学院,江苏扬州225009 [3]南通大学实验动物中心,江苏南通226007

出　　处：《江苏农业学报》2009年第2期320-323,共4页Jiangsu Journal of Agricultural Sciences

基　　金：国家自然科学基金项目(30571323);江苏省高校自然科学基础研究项目(06KJD230203);高校科学研究项目(07YCKL056)

摘　　要：用淀粉凝胶电泳法检测长江三角洲白山羊不同地理群体12个结构基因座位上的变异,探讨了群体间的基因流动情况。结果表明,群体间的遗传分化水平很低,群体间基因流平均为23.6208,并且群体间的遗传距离与地理位置的相距远近存在线性相关性。较大的基因流是长江三角洲白山羊不同地理群体间遗传分化水平很低的主要原因。Genetic variations of 12 structural loci of different Yangtse River Delta white goat populations were examined by starch gel electrophoresis and gene flow was analyzed. The genetic differentiation was very low and the average gene flow was 23. 620 8 among populations. The genetic distances among populations correlated lineatly with the geographical distances. High gene flow was the main reason leading to the very low genetic differentiation level of different populations of the Yangtse River Delta White Goat.

关 键 词：长江三角洲白山羊 基因流 遗传分化 地理隔离 

分 类 号：S827.2[农业科学—畜牧学]