Aug 5, 2014

Genetic structure of Qiangic populations residing in the western Sichuan corridor

PloS One
Chuanchao WangHui Li

Abstract

The Qiangic languages in western Sichuan (WSC) are believed to be the oldest branch of the Sino-Tibetan linguistic family, and therefore, all Sino-Tibetan populations might have originated in WSC. However, very few genetic investigations have been done on Qiangic populations and no genetic evidences for the origin of Sino-Tibetan populations have been provided. By using the informative Y chromosome and mitochondrial DNA (mtDNA) markers, we analyzed the genetic structure of Qiangic populations. Our results revealed a predominantly Northern Asian-specific component in Qiangic populations, especially in maternal lineages. The Qiangic populations are an admixture of the northward migrations of East Asian initial settlers with Y chromosome haplogroup D (D1-M15 and the later originated D3a-P47) in the late Paleolithic age, and the southward Di-Qiang people with dominant haplogroup O3a2c1*-M134 and O3a2c1a-M117 in the Neolithic Age.

Mentioned in this Paper

CD163 wt Allele
Short Tandem Repeat
CD163 gene
Y Chromosome
Oral Mucositis Rating Scale
DNA, Mitochondrial
Indonesia Zebrafish
Genetics, Population
Chromosomes, Human, Y
Phylogeny

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