Reconstructing Austronesian population history in Island Southeast Asia
Name
Berger_Reconstructing Austronesian.pdf
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Author(s)
Lipson, Mark
Loh, Po-Ru
Patterson, Nick
Moorjani, Priya
Ko, Ying-Chin
Stoneking, Mark
Berger, Bonnie
Reich, David
Date Issued
August 2014
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Lipson, Mark, Po-Ru Loh, Nick Patterson, Priya Moorjani, Ying-Chin Ko, Mark Stoneking, Bonnie Berger, and David Reich. “Reconstructing Austronesian Population History in Island Southeast Asia.” Nature Communications 5 (August 19, 2014): 4689.
Version
Final published version
Abstract
Austronesian languages are spread across half the globe, from Easter Island to Madagascar. Evidence from linguistics and archaeology indicates that the ‘Austronesian expansion,’ which began 4,000–5,000 years ago, likely had roots in Taiwan, but the ancestry of present-day Austronesian-speaking populations remains controversial. Here, we analyse genome-wide data from 56 populations using new methods for tracing ancestral gene flow, focusing primarily on Island Southeast Asia. We show that all sampled Austronesian groups harbour ancestry that is more closely related to aboriginal Taiwanese than to any present-day mainland population. Surprisingly, western Island Southeast Asian populations have also inherited ancestry from a source nested within the variation of present-day populations speaking Austro-Asiatic languages, which have historically been nearly exclusive to the mainland. Thus, either there was once a substantial Austro-Asiatic presence in Island Southeast Asia, or Austronesian speakers migrated to and through the mainland, admixing there before continuing to western Indonesia.
MIT Department
Massachusetts Institute of Technology. Computer Science and Artificial Intelligence Laboratory
Massachusetts Institute of Technology. Department of Mathematics
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reative Commons Attribution- NonCommercial-NoDerivs 4.0 International License
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DOI of Published Version
https://doi.org/10.1038/ncomms5689
