Yao Shao-Kuan, Zhang Qin, Sun Fei-Zhou, Liu Pei-Qiong
College of Animal Science, Guizhou University, Guiyang 550025, China.
Yi Chuan. 2006 Apr;28(4):407-12.
Twenty-seven microsatellite markers recommended by the Food and Agriculture Organization (FAO) and the International Society for Animal Genetics (ISAG) were used to analyze the genetic diversities of 7 Chinese native miniature pig breeds/strains (Jiuyang Xiang Pig, Jianbai Xiang Pig, Congjiang Xiang Pig, Huanjiang Xiang Pig, Black Xiang Pig, Wuzhishan Pig, and Diannan Small Ear Pig) and 3 western pig breeds (Duroc, Large White, and Landrace). The results indicate that there exists, in general, a high degree of genetic variability within the 7 miniature pig breeds. However, the genetic variability in Jiuyang Xiang Pig, Jianbai Xiang Pig, Huanjiang Xiang Pig, and Congjiang Xiang Pig (average PICs being 0.61-0.64) was significantly lower than that in the other three miniature pig breeds (average PICs being 0.60-0.84). The genetic divergence among Jiuyang, Jianbai, Huanjiang, and Congjiang was very small (Nei's standard genetic distances being 0.12-0.22), but it was large between them and the other three miniature pig breeds (Nei's standard genetic distances being 1.61-1.96), and even larger between them and the three foreign breeds (Nei's standard genetic distances being 1.99-3.30). Cluster analysis reveals three obvious clusters for the 10 breeds: Jiuyang, Jianbai, Huanjiang, and Congjiang are in one cluster, the other three miniature pig breeds in the other, and the three foreign breeds in the third. These results are consistent with the geography distribution and origin of these breeds.
采用联合国粮食及农业组织（FAO）和国际动物遗传学会（ISAG）推荐的27个微卫星标记，对7个中国地方小型猪品种/品系（久仰香猪、剑白香猪、从江香猪、环江香猪、黑香猪、五指山猪和滇南小耳猪）和3个西方猪品种（杜洛克猪、大白猪和长白猪）的遗传多样性进行了分析。结果表明，7个小型猪品种总体上存在高度的遗传变异性。然而，久仰香猪、剑白香猪、环江香猪和从江香猪的遗传变异性（平均多态信息含量为0.61 - 0.64）显著低于其他三个小型猪品种（平均多态信息含量为0.60 - 0.84）。久仰、剑白、环江和从江之间的遗传分化非常小（Nei氏标准遗传距离为0.12 - 0.22），但它们与其他三个小型猪品种之间的遗传分化较大（Nei氏标准遗传距离为1.61 - 1.96），与三个外来品种之间的遗传分化更大（Nei氏标准遗传距离为1.99 - 3.30）。聚类分析显示，10个品种明显分为三类：久仰、剑白、环江和从江聚为一类，其他三个小型猪品种聚为一类，三个外来品种聚为一类。这些结果与这些品种的地理分布和起源一致。
