文献类型： 外文期刊
第一作者： Xia, X.
作者： Xia, X.;Jia, Y.;Zhao, X.;Huang, Y.;Chen, H.;Lei, C.;Qu, K.;Huang, B.;Zhang, G.;Ma, Z.
作者机构：
关键词： Bos taurus; Bos indicus; genetic diversity; introgression; mitochondrial DNA D-loop
期刊名称：ANIMAL GENETICS （ 影响因子：3.169； 五年影响因子：3.058 ）
ISSN： 0268-9146
年卷期： 2019 年 50 卷 1 期
页码：
收录情况： SCI
摘要： Complete mitochondrial DNA D-loop sequences of 1105 individuals were used to assess the diversity of maternal lineages of cattle populations in China. In total, 250 taurine and 88 zebu haplotypes were identified. Five main haplogroups-T1a, T2, T3, T4 and T5-were identified in Bos taurus, whereas Bos indicus harbored two haplogroups-I1 and I2. Our results suggest that the distribution of T1a in Asia was concentrated mainly in the northeast region (northeast China, Korea and Japan); haplogroups T2, T3 and T4 were predominant in Chinese cattle; and T5 was sporadically detected in Mongolian and Pingwu cattle. In contrast to the widespread presence of I1, I2 was distributed only in southwestern China (Yunnan-Guizhou Plateau and the Tibet Autonomous Region) and Xinjiang Uygur Autonomous Region. This is the first time that all five taurine haplogroups and two zebu haplogroups have been found in Mongolian cattle. In addition, eight individuals in Tibetan cattle carried the Bos grunniens mtDNA type. The high mtDNA diversity (H = 0.904 +/- 0.008) and the weak genetic structure among the 57 Chinese cattle breeds/populations are consistent with their complex historical background, migration route and ecological environment.
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