Microsatellite-Based Genetic Differentiation and Phylogeny of Sheep Breeds in Mongolia Sheep Group of China
文献类型: 外文期刊
第一作者: Sun Wei
作者: Sun Wei;Chang Hong;Liao Xin-jun;Hassan, Musa Hussein;Chu Ming-xing;James, Kija
作者机构:
关键词: genetic differentiation;genetic phylogeny;microsatellite DNA;Mongolian sheep
期刊名称:AGRICULTURAL SCIENCES IN CHINA ( 影响因子:0.82; 五年影响因子:0.997 )
ISSN: 1671-2927
年卷期: 2011 年 10 卷 7 期
页码:
收录情况: SCI
摘要: In the present study we studied the genetic structure of five Chinese sheep populations of Hu sheep, Tong sheep, Small-tailed Han sheep, Tan sheep, and Wadi (WD) sheep using 15 microsatellite loci. The results showed that the F(IT), F(ST), and F(IS) statistics computed for the complete dataset had the following values, 0.523 +/- 0.140, 0.363 +/- 0.131 and 0.263 +/- 0.092, respectively. All loci were significantly contributed to the genetic differentiation among population (P<0.001). There is no relationship between the scatter of pairwise F(ST) geographical distance points as geographical distance increases between the five populations. Membership probabilities and genetic structure of sheep populations were estimated when K=2, the populations were classified into Hu, Tong, Han and WD, and Tan sheep group. However, when K=3, the populations were classified into Hu and Tong, Han and WD, and Tan sheep group. The findings supported the previous literatures that these populations are originated on different time stages from the primogenitor population and communicated genetically with each other by natural and artificial selection in different ecological environment.
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