Deep roots for Aboriginal Australian Y chromosomes

Bergström, Anders ORCID: https://orcid.org/0000-0002-4096-9268, Nagle, Nano, Chen, Yuan, McCarthy, Shane, Pollard, Martin O., Ayub, Qasim, Wilcox, Stephen, Wilcox, Leah, van Oorschot, Roland A. H., McAllister, Peter, Williams, Lesley, Xue, Yali, Mitchell, R. John and Tyler-Smith, Chris (2016) Deep roots for Aboriginal Australian Y chromosomes. Current Biology, 26 (6). pp. 809-813. ISSN 0960-9822

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Abstract

Australia was one of the earliest regions outside Africa to be colonized by fully modern humans, with archaeological evidence for human presence by 47,000 years ago (47 kya) widely accepted [1, 2]. However, the extent of subsequent human entry before the European colonial age is less clear. The dingo reached Australia about 4 kya, indirectly implying human contact, which some have linked to changes in language and stone tool technology to suggest substantial cultural changes at the same time [3]. Genetic data of two kinds have been proposed to support gene flow from the Indian subcontinent to Australia at this time, as well: first, signs of South Asian admixture in Aboriginal Australian genomes have been reported on the basis of genome-wide SNP data [4]; and second, a Y chromosome lineage designated haplogroup C∗, present in both India and Australia, was estimated to have a most recent common ancestor around 5 kya and to have entered Australia from India [5]. Here, we sequence 13 Aboriginal Australian Y chromosomes to re-investigate their divergence times from Y chromosomes in other continents, including a comparison of Aboriginal Australian and South Asian haplogroup C chromosomes. We find divergence times dating back to ∼50 kya, thus excluding the Y chromosome as providing evidence for recent gene flow from India into Australia.

Item Type: Article
Faculty \ School: Faculty of Science > School of Biological Sciences
UEA Research Groups: Faculty of Science > Research Centres > Centre for Ecology, Evolution and Conservation
Depositing User: LivePure Connector
Date Deposited: 24 Oct 2023 01:45
Last Modified: 12 Oct 2024 19:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/93440
DOI: 10.1016/j.cub.2016.01.028

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