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Ancient mitochondrial M haplogroups identified in the Southwest Pacific

journal contribution
posted on 2025-03-05, 11:23 authored by D Andrew Merriwether, Jason A Hodgson, Françoise R Friedlaender, Robin Allaby, Salvatore Cerchio, George Koki, Jonathan S Friedlaender
Based on whole mtDNA sequencing of 14 samples from Northern Island Melanesia, we characterize three formerly unresolved branches of macrohaplogroup M that we call haplogroups M27, M28, and M29. Our 1,399 mtDNA control region sequences and a literature search indicate these haplogroups have extremely limited geographical distributions. Their coding region variation suggests diversification times older than the estimated date for the initial settlement of Northern Island Melanesia. This finding indicates that they were among the earliest mtDNA variants to appear in these islands or in the ancient continent of Sahul. These haplogroups from Northern Island Melanesia extend the existing schema for macrohaplogroup M, with many independent branches distributed across Asia, East Africa, Australia, and Near Oceania.

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Refereed

  • Yes

Volume

102

Issue number

37

Page range

13034-13039

Publication title

Proceedings of the National Academy of Sciences

ISSN

0027-8424

Publisher

Proceedings of the National Academy of Sciences

Language

  • eng

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  • School of Life Sciences Outputs

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