Phylogenetic relationships among Chinese indigenous goat breeds inferred from mitochondrial control region sequence

文献类型: 外文期刊

第一作者: Fan, Bin

作者: Fan, Bin;Chen, Shi-Lin;Kijas, Jame H.;Liu, Bang;Yu, Mei;Zhao, Shu-Hong;Zhu, Meng-Jin;Xiong, Tong-An;Li, Kui

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期刊名称:SMALL RUMINANT RESEARCH ( 影响因子:1.611; 五年影响因子:1.813 )

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收录情况: SCI

摘要: Although it is generally accepted that a 'multiple origins' hypothesis could explain the origin of Chinese goats, little supportive evidence from mtDNA control region sequencing analysis has been collected. We assessed the phylogenetic relationships among 84 individuals representing 13 Chinese indigenous goat breeds and Boer, using a hypervariable segment of mtDNA control region. A total of 49 haplotypes defined by 85 polymorphic sites were found in the study. Combining with the published mtDNA control region sequences, the phylogenetic analysis classified these goats into four distinctive groups corresponding to lineage A-D, implying that Chinese goats have multiple maternal origins. Qinghai-Tibet Plateau is an important cradle of Chinese indigenous goats. As far as the major lineage A was concerned, it was possibly derived from Tibetan founders and was further subject to domestication in North China; some of them were dispersed to South China while the others remained. The hierarchical analysis indicated that a large percentage (73.9%) of total mtDNA variation existed within populations and a minority was due to differences among geographical types, suggesting that Chinese goats have relatively weak phylogeographic structure.

分类号: Q95

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