| 摘要: |
| 应用水平板淀粉凝胶电泳技术对八眉猪（22）、安康猪（30）、林芝藏猪（42）、合作猪（55）、成华猪（40）和迪庆藏猪（52）的血液淀粉酶多态性进行了分析。结果表明，在6个地方猪群体中共发现了6个等位基因，即AmA,AmB,AmC,AmX,AmY和AmC，其中AmA和AmC的频率表现出明显的地域差异，中国地方猪具有亚洲猪的典型特点。可以认为南亚地方猪群体在超源上大多属于条纹野猪，而东亚地方猪群体则大多起源于北方野猪。Am座位是研究地方猪群体遗传结构最有价值的两个血液蛋白座位（Am和Tf）之一。 |
| 关键词: 地方猪群体 淀粉酶 多态性 电泳 |
| 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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| Amylase polymorphism of native pig populations in China and surrounding countries |
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| Abstract: |
| Amylase polymorphism of six native pig populations,namely Bamei (22),Ankang(30),Linzhi-Tibetan Pig(420,Hezuo(500,Chenghua(40) and Diqing-Tibetan pig(52),was detected with horizontal starch gel electrophoresis.The allelic frequencies at Am locus were calculated and their precision degree and confidence probability were also estimated simultaneously.The results showed that Am locus was polymorphic dominated by AAmA,AmB,AmC,AmX,mY and AmC codominance alleles.The frequencies of AmAand AmC showed a remarkable geographic difference.The results support the idea that the Malay Peninsul is a border of each habitat of the origina Indian wild boar,S.s.cristatus and Southeast Asianone,S.s.cristatus which are regarded as typical wild froms of the ancestors in the present domestic pigs of Southeast Asia.Chinese native pig populations have typical character of Asian native pig populations,AMB as a dominant gene at Am locus.This paper suggested that Am locus could be regarded as one of the modt valuable blood protein markers for studies of genetic components and characters in pigs |
| Key words: native pig population amylase polymorphism electrophoresis |
