Genetic dating indicates that the Asian-Papuan admixture through Eastern Indonesia corresponds to the Austronesian expansion = 아시아와 파푸안의 혼혈이 동부 인도네시아를 통해 일어났음을 나타내는 분자시계

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Title
Genetic dating indicates that the Asian-Papuan admixture through Eastern Indonesia corresponds to the Austronesian expansion = 아시아와 파푸안의 혼혈이 동부 인도네시아를 통해 일어났음을 나타내는 분자시계
Author(s)
S Xu; I Pugach; M Stoneking; M Kayser; L Jin; M A Abdulla; I Ahmed; A Assawamakin; Jong Hwa Park; S K Brahmachari; G C Calacal; A Chaurasia; C H Chen; J Chen; Y T Chen; J Chu; E M C Cutiongco; M C A Ungria; F C Delfin; J Edo; S Fuchareon; H Ghang; Woo Yeon Kim; Sung Hoon Lee; Oh Sang Ho; Jin Ok Yang; Hyang Sook Yoo; I G C Consortium
Bibliographic Citation
Proceedings of National Academy of Sciences of United States of America, vol. 109, no. 12, pp. 4574-4579
Publication Year
2012
Abstract
Although the Austronesian expansion had a major impact on the languages of Island Southeast Asia, controversy still exists over the genetic impact of this expansion. The coexistence of both Asian and Papuan genetic ancestry in Eastern Indonesia provides a unique opportunity to address this issue. Here, we estimate recombination breakpoints in admixed genomes based on genome-wide SNP data and date the genetic admixture between populations of Asian vs. Papuan ancestry in Eastern Indonesia. Analyses of two genome-wide datasets indicate an eastward progression of the Asian admixture signal in Eastern Indonesia beginning about 4,000-3,000 y ago, which is in excellent agreement with inferences based on Austronesian languages. The average rate of spread of Asian genes in Eastern Indonesia was about 0.9 km/y. Our results indicate that the Austronesian expansion had a strong genetic as well as linguistic impact on Island Southeast Asia, and they significantly advance our understanding of the biological origins of human populations in the Asia-Pacific region.
Keyword
Admixture timeExpansion timeMigration rateSingle nucleotide polymorphism
ISSN
0027-8424
Publisher
Natl Acad Sciences
DOI
http://dx.doi.org/10.1073/pnas.1118892109
Type
Article
Appears in Collections:
1. Journal Articles > Journal Articles
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