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Article Dans Une Revue Genetics Année : 2006

Male Demography in East Asia: A North–South Contrast in Human Population Expansion Times

Yali Xue
  • Fonction : Auteur
Weidong Bao
  • Fonction : Auteur
Suling Zhu
  • Fonction : Auteur
Qunfang Shu
  • Fonction : Auteur
Jiujin Xu
  • Fonction : Auteur
Ruofu Du
  • Fonction : Auteur
Songbin Fu
  • Fonction : Auteur
Pu Li
  • Fonction : Auteur
Matthew E Hurles
  • Fonction : Auteur
Huanming Yang
  • Fonction : Auteur
Chris Tyler-Smith
  • Fonction : Auteur

Résumé

Abstract The human population has increased greatly in size in the last 100,000 years, but the initial stimuli to growth, the times when expansion started, and their variation between different parts of the world are poorly understood. We have investigated male demography in East Asia, applying a Bayesian full-likelihood analysis to data from 988 men representing 27 populations from China, Mongolia, Korea, and Japan typed with 45 binary and 16 STR markers from the Y chromosome. According to our analysis, the northern populations examined all started to expand in number between 34 (18–68) and 22 (12–39) thousand years ago (KYA), before the last glacial maximum at 21–18 KYA, while the southern populations all started to expand between 18 (6–47) and 12 (1–45) KYA, but then grew faster. We suggest that the northern populations expanded earlier because they could exploit the abundant megafauna of the “Mammoth Steppe,” while the southern populations could increase in number only when a warmer and more stable climate led to more plentiful plant resources such as tubers.
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hal-03378452 , version 1 (14-10-2021)

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Tatiana Zerjal, Yali Xue, Weidong Bao, Suling Zhu, Qunfang Shu, et al.. Male Demography in East Asia: A North–South Contrast in Human Population Expansion Times. Genetics, 2006, 172 (4), pp.2431-2439. ⟨10.1534/genetics.105.054270⟩. ⟨hal-03378452⟩
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