Complex patterns of admixture across the Indonesian archipelago

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dc.citation.issue10
dc.citation.volume34
dc.contributor.authorHudjashov G
dc.contributor.authorKarafet TM
dc.contributor.authorLawson DJ
dc.contributor.authorDowney S
dc.contributor.authorSavina O
dc.contributor.authorSudoyo H
dc.contributor.authorLansing JS
dc.contributor.authorHammer MF
dc.contributor.authorCox MP
dc.date.available2017-10
dc.date.issued1/10/2017
dc.description.abstractIndonesia, an island nation as large as continental Europe, hosts a sizeable proportion of global human diversity, yet remains surprisingly undercharacterized genetically. Here, we substantially expand on existing studies by reporting genome-scale data for nearly 500 individuals from 25 populations in Island Southeast Asia, New Guinea, and Oceania, notably including previously unsampled islands across the Indonesian archipelago. We use high-resolution analyses of haplotype diversity to reveal fine detail of regional admixture patterns, with a particular focus on the Holocene. We find that recent population history within Indonesia is complex, and that populations from the Philippines made important genetic contributions in the early phases of the Austronesian expansion. Different, but interrelated processes, acted in the east and west. The Austronesian migration took several centuries to spread across the eastern part of the archipelago, where genetic admixture postdates the archeological signal. As with the Neolithic expansion further east in Oceania and in Europe, genetic mixing with local inhabitants in eastern Indonesia lagged behind the arrival of farming populations. In contrast, western Indonesia has a more complicated admixture history shaped by interactions with mainland Asian and Austronesian newcomers, which for some populations occurred more than once. Another layer of complexity in the west was introduced by genetic contact with South Asia and strong demographic events in isolated local groups.
dc.description.publication-statusPublished
dc.format.extent2439 - 2452
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000411814800002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationMOLECULAR BIOLOGY AND EVOLUTION, 2017, 34 (10), pp. 2439 - 2452
dc.identifier.doi10.1093/molbev/msx196
dc.identifier.eissn1537-1719
dc.identifier.elements-id381735
dc.identifier.harvestedMassey_Dark
dc.identifier.issn0737-4038
dc.identifier.urihttps://hdl.handle.net/10179/12029
dc.relation.isPartOfMOLECULAR BIOLOGY AND EVOLUTION
dc.subjectgenetic diversity
dc.subjectpopulation structure
dc.subjecthuman migration
dc.subjectgenetic admixture
dc.subject.anzsrc0601 Biochemistry and Cell Biology
dc.subject.anzsrc0603 Evolutionary Biology
dc.subject.anzsrc0604 Genetics
dc.titleComplex patterns of admixture across the Indonesian archipelago
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Fundamental Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Natural Sciences
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