【摘 要】
：
To determine the genetic diversity and paternal origin of Chinese cattle, 284 male samples from 16 Chinese native cattle breeds were analyzed using four previously defined Y-SNP markers that distingui
【机 构】
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Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technolog
【出 处】
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2011中国肉牛选育改良与产业发展国际研讨会
论文部分内容阅读
To determine the genetic diversity and paternal origin of Chinese cattle, 284 male samples from 16 Chinese native cattle breeds were analyzed using four previously defined Y-SNP markers that distinguish between taurine and indicine cattle.In Chinese bulls, the taurine Y2 haplogroup and indicine Y3 haplogroup were detected in 162 (57.0%) and 122 (43.0%) individuals, respectively,although these frequencies varied amongst the Chinese cattle breeds examined.Y2 dominates in northern China (98.2%), while Y3 dominates in southern China (83.5%).Central China is an admixture zone, although Y2 predominates overall (64.5%).The geographical distributions of the Y2 and Y3haplogroup frequencies reveal a pattern of male indicine introgression from south to north China, and male taurine introgression from north to south China.
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