Indians and Aboriginal Australians share genetic link

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Ok, not really news if you think about it – but good to have more corroborating evidence. This study (open access, too!) shows a distinct mDNA link between the aboriginal Australians and populations from the Indian subcontinent, which lends support to the idea that modern humans migrating out of Africa took a southernly route, hugging the coast, from India, through Southeast Asia and finally into Australia. Quite significantly, the divergence in the mDNA suggests that Australia was populated sometime around 50,000-60,000 years ago, which corresponds quite well to the conclusions derived from archaeology. This in turn implies that Southeast Asia was populated a little earlier, perhaps 70,000 years before present?

Uluru Sunset 2002
photo credit: Kiwi Flickr

Reconstructing Indian-Australian phylogenetic link
BioMed Central, 22 July 2009
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