利用微卫星标记分析七品种（类群）小型猪的遗传多样性

遗传 ›› 2006, Vol. 28 ›› Issue (4): 407-412.

利用微卫星标记分析七品种（类群）小型猪的遗传多样性

姚绍宽¹;张勤²;孙飞舟³;刘培琼¹

1．贵州大学动物科学学院，贵阳 550025；2．中国农业大学动物科技学院，北京 100094；3. 全国畜牧兽医总站畜禽牧草种质保存利用中心，北京 100094

收稿日期:2005-04-12 修回日期:2005-11-22 出版日期:2006-04-10 发布日期:2006-04-10
通讯作者: 刘培琼

Genetic Diversity of Seven Miniature Pig Breeds (strains) Analyzed by Using Microsatellite Markers

YAO Shao-Kuan^{1 ;}ZHANG Qin^{2 ;}SUN Fei-Zhou^{3 ;}LIU Pei-Qiong¹

1 College of Animal Science, Guizhou University, Guiyang 550025, China; 2 College of Animal Science and Technology, China Agricultural University, Beijing 100094, China; 3. Center for Preservation and Utilization of Germplasm Resources of Domestic Animals and Forage, National Animal Husbandry and Veterinary Service, Ministry of Agriculture, Beijing 100094,China

Received:2005-04-12 Revised:2005-11-22 Online:2006-04-10 Published:2006-04-10
Contact: LIU Pei-Qiong

摘要/Abstract

摘要：

采用世界粮农组织（FAO）和国际动物遗传学会（ISAG）推荐的27个微卫星，对久仰香猪、剑白香猪、从江香猪、环江香猪、黑香猪（贵州省种猪场）、五指山猪和滇南小耳猪等我国7小型猪种（类群）及杜洛克、长白和大白等3个外来猪种的群内遗传变异性和群间遗传差异进行了分析。结果表明，7个小型猪品种（类群）均有较高的群内遗传变异，但久仰、剑白、从江和环江4个香猪类群的群内遗传变异（平均多态信息含量（PIC）为0.61～0.64）显著低于其他3个小型猪种（平均PIC为0.80～0.84）。久仰、剑白、从江和环江4个香猪类群彼此间的遗传差异较小（奈氏标准遗传距离为0.12~0.22）,但它们与其他3个小型猪种有较大的遗传差异（奈氏标准遗传距离为1.61～1.96），与3个外来猪种的遗传差异更大（奈氏标准遗传距离为1.99～3.30）。通过聚类分析，可将这些猪种清晰地分为3大类，久仰、剑白、从江和环江4个香猪类群紧密地聚为一类，其他3个小型猪种聚为一类，3个外来猪种聚为另一类。这一结果基本符合这些猪种的地理分布和品种来源。

关键词: 微卫星标记, 遗传多样性, 小型猪

Abstract: 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.

中图分类号:

Q953

姚绍宽，张勤，孙飞舟，刘培琼. 利用微卫星标记分析七品种（类群）小型猪的遗传多样性[J]. 遗传, 2006, 28(4): 407-412.

YAO Shao-Kuan, ZHANG Qin, SUN Fei-Zhou, LIU Pei-Qiong. Genetic Diversity of Seven Miniature Pig Breeds (strains) Analyzed by Using Microsatellite Markers[J]. HEREDITAS, 2006, 28(4): 407-412.

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