Mitogenomic Meta-Analysis Identifies Two Phases of Migration in the History of Eastern Eurasian Sheep
文献类型: 外文期刊
第一作者: Lv, Feng-Hua
作者: Lv, Feng-Hua;Peng, Wei-Feng;Yang, Ji;Zhao, Yong-Xin;Yang, Guang-Li;Li, Meng-Hua;Peng, Wei-Feng;Zhao, Yong-Xin;Li, Wen-Rong;Liu, Ming-Jun;Ma, Yue-Hui;Zhao, Qian-Jun;Gorkhali, Neena A.;Han, Jian-Lin;Yang, Guang-Li;Wang, Feng;Li, Jin-Quan;Liu, Yong-Gang;Shen, Zhi-Qiang;Zhao, Sheng-Guo;EEr Hehua;Gorkhali, Neena A.;Vahidi, S. M. Farhad;Muladno, Muhammad;Naqvi, Arifa N.;Tabell, Jonna;Iso-Touru, Terhi;Bruford, Michael W.;Kantanen, Juha;Han, Jian-Lin
作者机构:
关键词: wild ancestor;domestication;gene flow;mitogenome;Ovis aries;meta-analysis;colonization simulation
期刊名称:MOLECULAR BIOLOGY AND EVOLUTION ( 影响因子:16.24; 五年影响因子:18.67 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Despite much attention, history of sheep (Ovis aries) evolution, including its dating, demographic trajectory and geographic spread, remains controversial. To address these questions, we generated 45 complete and 875 partial mitogenomic sequences, and performed a meta-analysis of these and published ovine mitochondrial DNA sequences (n = 3,229) across Eurasia. We inferred that O. orientalis and O. musimon share the most recent female ancestor with O. aries at approximately 0.790 Ma (95% CI: 0.637-0.934 Ma) during the Middle Pleistocene, substantially predating the domestication event (similar to 8-11 ka). By reconstructing historical variations in effective population size, we found evidence of a rapid population increase approximately 20-60 ka, immediately before the Last Glacial Maximum. Analyses of lineage expansions showed two sheep migratory waves at approximately 4.5-6.8 ka (lineages A and B: similar to 6.4-6.8 ka; C: similar to 4.5 ka) across eastern Eurasia, which could have been influenced by prehistoric West-East commercial trade and deliberate mating of domestic and wild sheep, respectively. A continent-scale examination of lineage diversity and approximate Bayesian computation analyses indicated that the Mongolian Plateau region was a secondary center of dispersal, acting as a "transportation hub" in eastern Eurasia: Sheep from the Middle Eastern domestication center were inferred to have migrated through the Caucasus and Central Asia, and arrived in North and Southwest China (lineages A, B, and C) and the Indian subcontinent (lineages B and C) through this region. Our results provide new insights into sheep domestication, particularly with respect to origins and migrations to and from eastern Eurasia.
分类号: Q7
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