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首页> 外文期刊>African Journal of Biotechnology >Genetic diversity and bottleneck analysis of Yunnan mithun (Bos frontalis) using microsatellite loci
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Genetic diversity and bottleneck analysis of Yunnan mithun (Bos frontalis) using microsatellite loci

机译：利用微卫星基因座分析云南通浑（Bos frontalis）的遗传多样性和瓶颈

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摘要

Mithun or gayal (Bos frontalis) is endemic to the Gaoligongshan Mountains and Drung River Basin in Yunnan, China; a rare and endangered?Bos?species. To evaluate the genetic diversity and bottleneck effect of Yunnan mithun population, we screened 16 bovine microsatellite loci of Yunnan mithun (N = 34) to provide genetic information for its conservation strategies and breeding programmes. A total of 126 microsatellite alleles and large allele size variance were detected. All loci displayed low genetic diversity with overall mean of Na = 7.88, polymorphism information content (PIC) = 0.60, and HE?= 0.63, which were the lowest among the beef cattle breeds. Despite the smaller population size, the normal L-shaped distribution of allelic frequencies without any mode-shift ?indicate the absence of genetic bottleneck in Yunnan mithun population, suggesting that Yunnan mithun population might moderately have underwent gene introgression from zebu and yellow cattle.
机译：Mithun或同性恋（Bos frontalis）是中国云南高黎贡山和Drung流域的特有物种。稀有和濒临灭绝的“ Bos”物种。为了评估云南通洪种群的遗传多样性和瓶颈效应，我们筛选了云南通洪的16个牛微卫星基因座（N = 34），为其遗传保护策略和育种计划提供了遗传信息。总共检测到126个微卫星等位基因和大等位基因大小变异。所有基因座均显示出较低的遗传多样性，总体平均值为Na = 7.88，多态信息含量（PIC）= 0.60，HE？= 0.63，在肉牛品种中最低。尽管种群规模较小，但等位基因频率的正常L形分布却没有任何模式转换，这表明云南mithun种群没有遗传瓶颈，这表明云南mithun种群可能适度地受到了封牛和黄牛的基因渗入。

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