АвторТема: A worldwide survey of human male demographic history based on Y-SNP and Y-STR da  (Прочитано 1613 раз)

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A worldwide survey of human male demographic history based on Y-SNP and Y-STR data from the HGDP-CEPH populations Wentao Shi, Qasim Ayub, Mark Vermeulen, Rong-guang Shao, Sofia Zuniga, Kristiaan van der Gaag, Peter de Knijff, Manfred Kayser, Yali Xue and Chris Tyler-Smith
We have investigated human male demographic history using 590 males from 51 populations in the HGDP-CEPH worldwide panel, typed with 37 Y-SNPs and 65 Y-STRs, and analyzed with the program BATWING. The general patterns we observe show a gradient from the oldest population TMRCAs and expansion times together with the largest effective population sizes in Africa, to the youngest times and smallest effective population sizes in the Americas. These parameters are significantly negatively correlated with distance from East Africa and the patterns are consistent with most other studies of human variation and history. In contrast, growth rate showed a weaker correlation in the opposite direction. Y lineage diversity and TMRCA also decrease with distance from East Africa, supporting a model of expansion with serial founder events starting from this source. A number of individual populations diverge from these general patterns, including previously-documented examples such as recent expansions of the Yoruba in Africa, Basques in Europe and Yakut in Northern Asia. However, some unexpected demographic histories were also found, including low growth rates in the Hazara and Kalash from Pakistan, and recent expansion of the Mozabites in North Africa.


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