文献类型： 外文期刊
作者： Yang, Yunzhou 1 ; Zhu, Qiyun 3 ; Liu, Shuqin 1 ; Zhao, Chunjiang 1 ; Wu, Changxin 1 ;
作者机构： 1.China Agr Univ, Coll Anim Sci & Technol, Beijing, Peoples R China
2.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai, Peoples R China
3.J Craig Venter Inst, Dept Genom Med, La Jolla, CA USA
4.China Agr Univ, Equine Ctr, Beijing, Peoples R China
5.Minist Agr, Key Lab Anim Breeding & Genet, Beijing, Peoples R China
关键词： Chinese indigenous horse;domestication;haplotypes;mtDNA
期刊名称：ANIMAL SCIENCE JOURNAL （ 影响因子：1.749； 五年影响因子：1.909 ）
ISSN：
年卷期：
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收录情况： SCI
摘要： The origin of domestic horses in China was a controversial issue and several hypotheses including autochthonous domestication, introduction from other areas, and multiple-origins from both introduction and local wild horse introgression have been proposed, but none of them have been fully supported by DNA data. In the present study, mitochondrial DNA (mtDNA) sequences of 714 Chinese indigenous horses were analyzed. The results showed that Chinese domestic horses harbor some novel mtDNA haplogroups and suggested that local domestication events may have occurred, but they are not the dominant haplogroups and the geographical distributions of the novel mtDNA haplogroups were rather restricted. Conclusively, our results support the hypothesis that the domestic horses in China originated from both the introduced horses from outside of China and the local wild horses' introgression into the domestic populations. Results of genetic diversity analysis suggested a possibility that the introduced horses entered China through northern regions from the Eurasian steppe.
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