Late Neolithic expansion of ancient Chinese revealed by Ychromosome haplogroup..

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Late Neolithic expansion of ancient Chinese revealed by Y chromosome haplogroup O3a1c-002611

    Chuan-Chao Wang1,
    Shi Yan2,
    Zhen-Dong Qin1,
    Yan Lu1,
    Qi-Liang Ding1,
    Lan-Hai Wei1,
    Shi-Lin Li1,
    Ya-Jun Yang1,
    Li Jin1,2,
    Hui Li1,*,
    the Genographic Consortium


Abstract

Y chromosome haplogroup O3-M122 is the most prevalent haplogroup in East Asia, and provides an ideal tool of dissecting primary dispersals of the East Asians. Most of the sub-haplogroups of O3-M122 have been sufficiently investigated except for O3a1c-002611, despite its great prevalence and huge population, especially in Han Chinese. In this study, we identified 508 individuals with haplogroup O3a1c-002611 out of 7801 males from 117 East and Southeast Asian populations, typed at two newly discovered downstream Y-SNP markers and ten commonly used Y-STRs. Defined by SNPs IMS-JST002611 (in short, 002611), F11, and F238, three lineages internal to haplogroup O3a1c-002611 have distinct geographical distributions. Furthermore, Y-STR diversity shows a general south-to-north decline, which is consistent with the prehistorically northward migration of the other O3-M122 lineages. The northward migration of haplogroup O3a1c-002611 started about 13 thousand years (KYA) ago. The expansions of subclades F11 and F238 in ancient Han Chinese began about 5 KYA and 7 KYA ago right after the separation between the ancestors of Han Chinese and Tibeto-Burman.

http://onlinelibrary.wiley.com/doi/10.1111/j.1759-6831.2012.00244.x/abstract

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