College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225002, China.
College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225002, China.
Mol Cell Probes. 2018 Feb;37:55-59. doi: 10.1016/j.mcp.2017.11.006. Epub 2017 Nov 21.
To explore the genetic divergence and phylogeny of Chinese indigenous sheep breeds, in the current study, we analyzed the polymorphisms of 5 structural loci in ten sheep populations, including Sishui Fur, Sunite, Wurank, Bayinbuluke, Altay, Small-Tailed Han, Wadi, Tan, Tong and Hu sheep. The data were then compared with those from an additional 13 Asian and 4 European sheep populations acquired by the same experimental method. Based on the genetic distance and the results of a cluster analysis, we constructed the phylogenetic relationship of 27 populations. The results showed that the sheep populations in this study could be classified into four genetic groups: "Mongolian", "Tibetan", "South-Southeast Asian" and "European" sheep groups. All 10 Chinese sheep breeds belonged to the "Mongolian sheep" lineage; however, Finnish Landrace sheep and Yunnan sheep could not be classified into any of the four groups. These results could provide a good reference for the protection and utilization of primary breed resources in China and phylogenic research on Asian sheep populations.
为了探究中国本土绵羊品种的遗传分化和系统发育，本研究分析了 10 个绵羊群体（泗水裘皮羊、苏尼特羊、乌冉克羊、巴音布鲁克羊、阿勒泰羊、小尾寒羊、瓦迪羊、滩羊、同羊和湖羊）中 5 个结构基因座的多态性。然后，我们将这些数据与采用相同实验方法获得的另外 13 个亚洲和 4 个欧洲绵羊群体的数据进行了比较。基于遗传距离和聚类分析的结果，我们构建了 27 个群体的系统发育关系。结果表明，本研究中的绵羊群体可分为四个遗传群体：“蒙古”、“藏”、“东南亚”和“欧洲”绵羊群体。中国的 10 个绵羊品种均属于“蒙古”绵羊谱系；然而，芬兰兰德瑞斯羊和云南绵羊不能归入这四个群体中的任何一个。这些结果为中国原始品种资源的保护和利用以及亚洲绵羊群体的系统发育研究提供了很好的参考。
