摘要
采用 2 2种限制性内切酶分析了三江白猪线粒体DNA的多态性。结果表明 :在 6 0头个体中检出 30种限制性态型 ,归结为 7种基因单倍型 ;其间的差异来自少数限制性位点的突变。单倍型间平均遗传距离为 0 .35 % ,群体遗传多态程度为 0 .0 4 4 %。三江白猪遗传多样性非常贫乏 ,说明三江白猪与地方种猪起源于一个共同祖先 。
A total of 22 restriction endonucleases were used to investigate the mitochondrial DNA polymorphism of Sanjiang White pigs. 30 restrictive morphs were detected, Which can be sorted into 7 haplotypes. The differences between haplotypes came from several dots mutation. The average genetic distance among haplotypes is 0.35%, and the value of average sequence variation in Sanjiang White pigs population is 0.044%.The results indicate that the genetic diversity based on restriction endomuclease cleavage patterns within Sanjiang White pigs is remarkably scarce. They may have originated from a late common ancestor, and were likely impacted by the founder effect.
出处
《黑龙江畜牧兽医》
CAS
北大核心
2004年第3期11-13,共3页
Heilongjiang Animal Science And veterinary Medicine
基金
黑龙江省农场总局"十五"科技攻关项目(HNK - 0 8- 0 1 )
