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中欧地区猛犸象种群动态:来自晚更新世线粒体基因组的见解。

Central European Woolly Mammoth Population Dynamics: Insights from Late Pleistocene Mitochondrial Genomes.

机构信息

Institute for Archaeological Science, University of Tübingen, Rümelinstraße 23, 72070, Tübingen, Germany.

Department of Archaeogenetics, Max Planck Institute for the Science of Human History, Kahlaische Straße 10, 07745, Jena, Germany.

出版信息

Sci Rep. 2017 Dec 18;7(1):17714. doi: 10.1038/s41598-017-17723-1.

Abstract

The population dynamics of the Pleistocene woolly mammoth (Mammuthus primigenius) has been the subject of intensive palaeogenetic research. Although a large number of mitochondrial genomes across Eurasia have been reconstructed, the available data remains geographically sparse and mostly focused on eastern Eurasia. Thus, population dynamics in other regions have not been extensively investigated. Here, we use a multi-method approach utilising proteomic, stable isotope and genetic techniques to identify and generate twenty woolly mammoth mitochondrial genomes, and associated dietary stable isotopic data, from highly fragmentary Late Pleistocene material from central Europe. We begin to address region-specific questions regarding central European woolly mammoth populations, highlighting parallels with a previous replacement event in eastern Eurasia ten thousand years earlier. A high number of shared derived mutations between woolly mammoth mitochondrial clades are identified, questioning previous phylogenetic analysis and thus emphasizing the need for nuclear DNA studies to explicate the increasingly complex genetic history of the woolly mammoth.

摘要

更新世长毛象(Mammuthus primigenius)的种群动态一直是古遗传学研究的主题。尽管已经重建了欧亚大陆大量的线粒体基因组,但可用数据在地理上仍然稀疏,主要集中在东亚。因此,其他地区的种群动态尚未得到广泛研究。在这里,我们使用多方法方法,利用蛋白质组学、稳定同位素和遗传技术,从来自中欧的高度碎片化的晚更新世材料中鉴定和生成二十个长毛象线粒体基因组,并生成相关的饮食稳定同位素数据。我们开始解决有关中欧长毛象种群的特定区域问题,强调与一万年前东亚发生的先前替换事件的平行性。长毛象线粒体进化枝之间存在大量共享的衍生突变,这对先前的系统发育分析提出了质疑,因此强调需要进行核 DNA 研究来阐明长毛象日益复杂的遗传历史。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c943/5735091/31af87a91411/41598_2017_17723_Fig1_HTML.jpg

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