Out of America:: Ancient DNA evidence for a new world origin of late quaternary woolly mammoths

被引:104
作者
Debruyne, Regis [1 ]
Chu, Genevieve [1 ]
King, Christine E. [1 ]
Bos, Kirsti [1 ]
Kuch, Melanie [1 ]
Schwarz, Carsten [1 ]
Szpak, Paul [1 ]
Groecke, Darren R. [2 ]
Matheus, Paul [3 ]
Zazula, Grant [4 ]
Guthrie, Dale [5 ]
Froese, Duane [6 ]
Buigues, Bernard [7 ]
de Marliave, Christian [7 ]
Flemming, Clare [8 ]
Poinar, Debi [1 ]
Fisher, Daniel [9 ]
Southon, John [10 ]
Tikhonov, Alexei N. [11 ]
MacPhee, Ross D. E. [8 ]
Poinar, Hendrik N. [1 ,12 ]
机构
[1] McMaster Univ, McMaster Ancient DNA Ctr, Dept Anthropol, Hamilton, ON L8S 4L9, Canada
[2] Univ Durham, Sci Labs, Dept Earth Sci, Durham DH1 3LE, England
[3] Univ Alaska Fairbanks, Alaska Quaternary Ctr, Fairbanks, AK 99775 USA
[4] Yukon Govt, Yukon Palaeontol Program, Dept Tourism & Culture, Whitehorse, YT Y1A 6V6, Canada
[5] Univ Alaska Fairbanks, Inst Arctic Biol, Fairbanks, AK 99775 USA
[6] Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada
[7] Mammuthus Expedit, F-94160 St Mande, France
[8] Amer Museum Nat Hist, Div Vertebrate Zool, New York, NY 10024 USA
[9] Univ Michigan, Museum Paleontol, Ann Arbor, MI 48109 USA
[10] Univ Calif Irvine, Keck Carbon Cycle Accelerator Mass Spectrometer E, Irvine, CA 92697 USA
[11] Russian Acad Sci, Inst Zool, St Petersburg 199034, Russia
[12] McMaster Univ, Dept Pathol & Mol Med, Hamilton, ON L8S 4L9, Canada
基金
美国国家科学基金会;
关键词
D O I
10.1016/j.cub.2008.07.061
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Although the iconic mammoth of the Late Pleistocene, the woolly mammoth (Mammuthus primigenius), has traditionally been regarded as the end point of a single anagenetically evolving lineage, recent paleontological and molecular studies have shown that successive allopatric speciation events must have occurred within Pleistocene Mammuthus in Asia, with subsequent expansion and hybridization between nominal taxa [1, 2]. However, the role of North American mammoth populations in these events has not been adequately explored from an ancient-DNA standpoint. To undertake this task, we analyzed mtDNA from a large data set consisting of mammoth samples from across Holarctica (n = 160) and representing most of radiocarbon time. Our evidence shows that, during the terminal Pleistocene, haplotypes originating in and characteristic of New World populations replaced or succeeded those endemic to Asia and western Beringia. Also, during the Last Glacial Maximum, mammoth populations do not appear to have suffered an overall decline in diversity, despite differing responses on either side of the Bering land bridge. In summary, the "Out-of-America" hypothesis holds that the dispersal of North American woolly mammoths into other parts of Holarctica created major phylogeographic structuring within Mammuthus primigenius populations, shaping the last phase of their evolutionary history before their demise.
引用
收藏
页码:1320 / 1326
页数:7
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