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Thread: The Q2 Mitochondrial Haplogroup in Oceania

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    The Q2 Mitochondrial Haplogroup in Oceania

    Corser CA, McLenachan PA, Pierson MJ, Harrison GLA, Penny D (2012) The Q2 Mitochondrial Haplogroup in Oceania. PLoS ONE 7(12): e52022. doi:10.1371/journal.pone.0052022

    Many details surrounding the origins of the peoples of Oceania remain to be resolved, and as a step towards this we report seven new complete mitochondrial genomes from the Q2a haplogroup, from Papua New Guinea, Fiji and Kiribati. This brings the total to eleven Q2 genomes now available. The Q haplogroup (that includes Q2) is an old and diverse lineage in Near Oceania, and is reasonably common; within our sample set of 430, 97 are of the Q haplogroup. However, only 8 are Q2, and we report 7 here. The tree with all complete Q genomes is proven to be minimal. The dating estimate for the origin of Q2 (around 35 Kya) reinforces the understanding that humans have been in Near Oceania for tens of thousands of years; nevertheless the Polynesian maternal haplogroups remain distinctive. A major focus now, with regard to Polynesian ancestry, is to address the differences and timing of the ‘Melanesian’ contribution to the maternal and paternal lineages as people moved further and further into Remote Oceania. Input from other fields such as anthropology, history and linguistics is required for a better understanding and interpretation of the genetic data.
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    Quote Originally Posted by apophis99942 View Post
    Corser CA, McLenachan PA, Pierson MJ, Harrison GLA, Penny D (2012) The Q2 Mitochondrial Haplogroup in Oceania. PLoS ONE 7(12): e52022. doi:10.1371/journal.pone.0052022



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    Hello, I guess I'm the first person in here with mtDNA Q2a, my mother is part Fijian and part Tongan, the Q2a is her Fijian side.

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