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Ref ID: 28613
Ref Type: Journal Article
Authors: Soares, Pedro
Trejaut, Jean Alain
Loo, Jun-Hun
Hill, Catherine
Mormina, Maru
Lee, Chien-Liang
Chen, Yao-Ming
Hudjashov, Georgi
Forster, Peter
Macaulay, Vincent
Bulbeck, David
Oppenheimer, Stephen
Lin, Marie
Richards, Martin B.
Title: Climate change and postglacial human dispersals in Southeast Asia
Date: 2008
Source: Molecular Biology and Evolution
DOI: 10.1093/molbev/msn068
Abstract: Modern humans have been living in Island Southeast Asia (ISEA) for at least 50,000 years. Largely because of the influence of linguistic studies, however, which have a shallow time depth, the attention of archaeologists and geneticists has usually been focused on the last 6,000 years—in particular, on a proposed Neolithic dispersal from China and Taiwan. Here we use complete mitochondrial DNA (mtDNA) genome sequencing to spotlight some earlier processes that clearly had a major role in the demographic history of the region but have hitherto been unrecognized. We show that haplogroup E, an important component of mtDNA diversity in the region, evolved in situ over the last 35,000 years and expanded dramatically throughout ISEA around the beginning of the Holocene, at the time when the ancient continent of Sundaland was being broken up into the present-day archipelago by rising sea levels. It reached Taiwan and Near Oceania more recently, within the last ∼8,000 years. This suggests that global warming and sea-level rises at the end of the Ice Age, 15,000–7,000 years ago, were the main forces shaping modern human diversity in the region.
Date Created: 10/6/2011
Volume: 25
Number: 6
Page Start: 1209
Page End: 1218