Phylogeography of the woolly mammoth (Mammuthus primigenius) in the Minusinsk Depression of southern Siberia in the Late Pleistocene.

IF 0.9 Q3 AGRICULTURE, MULTIDISCIPLINARY Vavilovskii Zhurnal Genetiki i Selektsii Pub Date : 2024-09-01 DOI:10.18699/vjgb-24-63
S A Modina, M A Kusliy, D G Malikov, A S Molodtseva
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Abstract

To date, a number of studies have been published on the phylogenetics of woolly mammoths (Mammuthus primigenius), ranging from analyses of parts of the mitochondrial genome to studies of complete nuclear genomes. However, until recently nothing was known about the genetic diversity of woolly mammoths in southern Siberia, in the Minusinsk Depression in particular. Within the framework of this effort, libraries for high-throughput sequencing of seven bone samples of woolly mammoths were obtained, two-round enrichment using biotinylated probes of modern mtDNA of Elephas maximus immobilised on magnetic microspheres and sequencing with subsequent bioinformatic analysis were carried out. Phylogenetic reconstructions showed the presence of all studied mammoths in clade I, which expanded its range. The assignment of mammoth mitotypes in the Minusinsk Depression to different clusters within clade I may indicate a sufficiently high diversity of their gene pool. Phylogeographic reconstructions revealed a genetic proximity of mitochondrial lineages of Late Pleistocene mammoths of the Minusinsk Depression and other regions of eastern Siberia and estimated their divergence time in the range of 100-150 thousand years ago, which indicates active migrations of woolly mammoths over vast territories of eastern Siberia in the late Middle Pleistoceneearly Late Pleistocene.

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晚更新世西伯利亚南部米努辛斯克洼地长毛猛犸象(Mammuthus primigenius)的系统地理学。
迄今为止,已经发表了许多关于长毛猛犸象(Mammuthus primigenius)系统发育学的研究,从线粒体基因组的部分分析到完整核基因组的研究。然而,直到最近,人们对西伯利亚南部,特别是米努辛斯克洼地的长毛猛犸象的遗传多样性还一无所知。在这项工作的框架内,获得了七个长毛猛犸象骨骼样本的高通量测序文库,使用固定在磁性微球上的大象现代mtDNA生物素化探针进行了两轮富集,并进行了测序和随后的生物信息学分析。系统发育重建表明,所有研究的猛犸象都属于I支系,这扩大了其分布范围。将米努辛斯克洼地的猛犸象分型归入I支系中的不同群组可能表明其基因库具有足够高的多样性。系统地理学重建显示,米努辛斯克洼地晚更新世猛犸象的线粒体系与西伯利亚东部其他地区的线粒体系在遗传上很接近,估计它们的分化时间在10-15万年前,这表明在中更新世晚期和晚更新世早期,长毛猛犸象在西伯利亚东部的广袤土地上积极迁徙。
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来源期刊
Vavilovskii Zhurnal Genetiki i Selektsii
Vavilovskii Zhurnal Genetiki i Selektsii AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
1.90
自引率
0.00%
发文量
119
审稿时长
8 weeks
期刊介绍: The "Vavilov Journal of genetics and breeding" publishes original research and review articles in all key areas of modern plant, animal and human genetics, genomics, bioinformatics and biotechnology. One of the main objectives of the journal is integration of theoretical and applied research in the field of genetics. Special attention is paid to the most topical areas in modern genetics dealing with global concerns such as food security and human health.
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