KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Mitochondrial genomes of Late Pleistocene caballine horses from China belong to a separate clade | |
Yuan, Junxia1,2; Sheng, Guilian2; Preick, Michaela3; Sun, Boyang4; Hou, Xindong2; Chen, Shungang1; Taron, Ulrike Helene3; Barlow, Axel3,5; Wang, Linying1; Hu, Jiaming2; Deng, Tao4 ; Lai, Xulong2; Hofreiter, Michael3
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| 2020-12-15 | |
| 发表期刊 | QUATERNARY SCIENCE REVIEWS
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| ISSN | 0277-3791 |
| 卷号 | 250期号:0页码:8 |
| 摘要 | There were several species of Equus in northern China during the Late Pleistocene, including Equus przewalskii and Equus dalianensis. A number of morphological studies have been carried out on E. przewalskii and E. dalianensis, but their evolutionary history is still unresolved. In this study, we retrieved near-complete mitochondrial genomes from E. dalianensis and E. przewalskii specimens excavated from Late Pleistocene strata in northeastern China. Phylogenetic analyses revealed that caballoid horses were divided into two subclades: the New World and the Old World caballine horse subclades. The Old World caballine horses comprise of two deep phylogenetic lineages, with modern and ancient Equus caballus and modern E. przewalskii forming lineage I, and the individuals in this study together with one Yakut specimen forming lineage II. Our results indicate that Chinese Late Pleistocene caballoid horses showed a closer relationship to other Eurasian caballine horses than that to Pleistocene horses from North America. In addition, phylogenetic analyses suggested a close relationship between E. dalianensis and the Chinese fossil E. przewalskii, in agreement with previous researches based on morphological analyses. Interestingly, E. dalianensis and the fossil E. przewalskii were intermixed rather than split into distinct lineages, suggesting either that gene flow existed between these two species or that morphology-based species assignment of palaeontological specimens is not always correct. Moreover, Bayesian analysis showed that the divergence time between the New World and the Old World caballoid horses was at 1.02 Ma (95% CI: 0.86-1.24 Ma), and the two Old World lineages (I & II) split at 0.88 Ma (95% CI: 0.69-1.13 Ma), which indicates that caballoid horses seem to have evolved into different populations in the Old World soon after they migrated from North America via the Bering Land Bridge. Finally, the TMRCA of E. dalianensis was estimated at 0.20 Ma (95% CI: 0.15-0.28 Ma), and it showed a relative low genetic diversity compared with other Equus species. (C) 2020 Elsevier Ltd. All rights reserved. |
| 关键词 | Equus dalianensis Equus przewalskii Pleistocene caballine horses Ancient DNA Phylogenetic relationship Divergence time |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41472014] ; National Natural Science Foundation of China[41672017] ; PPP project - China Scholarship Council ; PPP project - DAAD, Germany - German Academic Exchange Service[2016-2041] |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000595941500009 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/18819 |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Yuan, Junxia; Hofreiter, Michael |
| 作者单位 | 1.China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China 2.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 3.Univ Potsdam, Inst Biochem & Biol, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany 4.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, IVPP, Beijing 100044, Peoples R China 5.Nottingham Trent Univ, Sch Sci & Technol, Clifton Lane, Nottingham NG11 8NS, England |
| 推荐引用方式 GB/T 7714 | Yuan, Junxia,Sheng, Guilian,Preick, Michaela,et al. Mitochondrial genomes of Late Pleistocene caballine horses from China belong to a separate clade[J]. QUATERNARY SCIENCE REVIEWS,2020,250(0):8. |
| APA | Yuan, Junxia.,Sheng, Guilian.,Preick, Michaela.,Sun, Boyang.,Hou, Xindong.,...&Hofreiter, Michael.(2020).Mitochondrial genomes of Late Pleistocene caballine horses from China belong to a separate clade.QUATERNARY SCIENCE REVIEWS,250(0),8. |
| MLA | Yuan, Junxia,et al."Mitochondrial genomes of Late Pleistocene caballine horses from China belong to a separate clade".QUATERNARY SCIENCE REVIEWS 250.0(2020):8. |
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