| 摘要: |
| 采用5个微卫星引物对2个藏猪类群(合作猪和迪庆猪)及参照群体成华猪的遗传多样性进行了研究。结果表明，所选的5个微卫星引物均具有多态性,3个猪种在5个位点的等位基因数为4～8个；合作猪、迪庆猪和成华猪在5个位点的平均有效等位基因数分别为4.510 4，3.069 6和3.125 0，位点平均杂合度分别为0.771 3，0.640 5和0.519 7，平均多态信息含量分别为0.740 2,0.565 6和0.579 8；遗传分化系数表明，2个藏猪类群问亲缘关系较近(GST=22.07％)，二者与成华猪的关系较远(GST=22.46％，GST=31.11％)。 |
| 关键词: 藏猪 微卫星 遗传多样性 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(39670530) |
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| Micro-satellite DNA genetic diversity study on two pig populations |
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| Abstract: |
| The genetic diversity of five micro satellite sites were studied on two Tibetan pig populations (Hezuo pig and DiQing pig) and a chenghua pig population as reference.The result showed:The five micro satellite sites have all polymorphism.The allele number of the 5 micro satellite sites in 3 pig breeds were between 4 and 8.The mean effective allele number of the 5 micro satellite sites in Hezuo pig (HZ),DiQing pig (DQ) and Chenghua pig (CH) is 4.510 4,3.069 6 and 3.125 0,respectively.The mean site heterozygosity is 0.771 3,0.640 5 and 0.519 7,respectively.The mean polymorphism information content is 0.740 2,0.565 6 and 0.579 8,respectively.The calculation of genetic differentiation coefficient showed that the relationship of the two Tibetan pig populations is close (GST=22.07%),and that the relationship between the two Tibetan pig populations and the CH is distant (GST=22.46%,GST=31.11%). |
| Key words: Tibetan pig micro-satellite genetic diversity |
