A recent bottleneck of Y chromosome diversity coincides with a global change in culture.

A recent bottleneck of Y chromosome diversity coincides with a global change in culture.
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DOI:
10.1101/gr.186684.114
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发表时间:
2015-04
期刊:
影响因子:
7
通讯作者:
Kivisild T
Kivisild T
中科院分区:
生物学1区
文献类型:
--
作者:
Karmin M;Saag L;Vicente M;Wilson Sayres MA;Järve M;Talas UG;Rootsi S;Ilumäe AM;Mägi R;Mitt M;Pagani L;Puurand T;Faltyskova Z;Clemente F;Cardona A;Metspalu E;Sahakyan H;Yunusbayev B;Hudjashov G;DeGiorgio M;Loogväli EL;Eichstaedt C;Eelmets M;Chaubey G;Tambets K;Litvinov S;Mormina M;Xue Y;Ayub Q;Zoraqi G;Korneliussen TS;Akhatova F;Lachance J;Tishkoff S;Momynaliev K;Ricaut FX;Kusuma P;Razafindrazaka H;Pierron D;Cox MP;Sultana GN;Willerslev R;Muller C;Westaway M;Lambert D;Skaro V;Kovačevic L;Turdikulova S;Dalimova D;Khusainova R;Trofimova N;Akhmetova V;Khidiyatova I;Lichman DV;Isakova J;Pocheshkhova E;Sabitov Z;Barashkov NA;Nymadawa P;Mihailov E;Seng JW;Evseeva I;Migliano AB;Abdullah S;Andriadze G;Primorac D;Atramentova L;Utevska O;Yepiskoposyan L;Marjanovic D;Kushniarevich A;Behar DM;Gilissen C;Vissers L;Veltman JA;Balanovska E;Derenko M;Malyarchuk B;Metspalu A;Fedorova S;Eriksson A;Manica A;Mendez FL;Karafet TM;Veeramah KR;Bradman N;Hammer MF;Osipova LP;Balanovsky O;Khusnutdinova EK;Johnsen K;Remm M;Thomas MG;Tyler-Smith C;Underhill PA;Willerslev E;Nielsen R;Metspalu M;Villems R;Kivisild T

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人们普遍认为,非非洲种群中的人类遗传多样性主要是由5万-10万年前非洲以外的扩散形成的。在这里,我们提出了一项对456个地理上不同的高覆盖率Y染色体序列的研究,其中包括299个新报告的样本。应用古代DNA定标,我们测定了非洲Y染色体最近共同祖先(MRCA)的年龄为254(95%可信区间192-307)kya,并在47-52kya的狭窄时间间隔内检测到一群主要的非非洲创始人单倍群,这与欧亚大陆和大洋洲在非洲以外的瓶颈之后的快速初始殖民模式一致。与基于mtDNA的人口结构重建不同,我们推断出Y染色体谱系中的第二个强大瓶颈可以追溯到过去的10个Ky。我们假设,这种瓶颈是由文化变化影响男性生殖成功的差异造成的。
It is commonly thought that human genetic diversity in non-African populations was shaped primarily by an out-of-Africa dispersal 50–100 thousand yr ago (kya). Here, we present a study of 456 geographically diverse high-coverage Y chromosome sequences, including 299 newly reported samples. Applying ancient DNA calibration, we date the Y-chromosomal most recent common ancestor (MRCA) in Africa at 254 (95% CI 192–307) kya and detect a cluster of major non-African founder haplogroups in a narrow time interval at 47–52 kya, consistent with a rapid initial colonization model of Eurasia and Oceania after the out-of-Africa bottleneck. In contrast to demographic reconstructions based on mtDNA, we infer a second strong bottleneck in Y-chromosome lineages dating to the last 10 ky. We hypothesize that this bottleneck is caused by cultural changes affecting variance of reproductive success among males.
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