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Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles

The debate concerning the origin of the Polynesian speaking peoples has been recently reinvigorated by genetic evidence for secondary migrations to western Polynesia from the New Guinea region during the 2nd millennium BP. Using genome-wide autosomal data from the Leeward Society Islands, the ancien...

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Autores principales: Hudjashov, Georgi, Endicott, Phillip, Post, Helen, Nagle, Nano, Ho, Simon Y. W., Lawson, Daniel J., Reidla, Maere, Karmin, Monika, Rootsi, Siiri, Metspalu, Ene, Saag, Lauri, Villems, Richard, Cox, Murray P., Mitchell, R. John, Garcia-Bertrand, Ralph L., Metspalu, Mait, Herrera, Rene J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5789021/
https://www.ncbi.nlm.nih.gov/pubmed/29379068
http://dx.doi.org/10.1038/s41598-018-20026-8
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author Hudjashov, Georgi
Endicott, Phillip
Post, Helen
Nagle, Nano
Ho, Simon Y. W.
Lawson, Daniel J.
Reidla, Maere
Karmin, Monika
Rootsi, Siiri
Metspalu, Ene
Saag, Lauri
Villems, Richard
Cox, Murray P.
Mitchell, R. John
Garcia-Bertrand, Ralph L.
Metspalu, Mait
Herrera, Rene J.
author_facet Hudjashov, Georgi
Endicott, Phillip
Post, Helen
Nagle, Nano
Ho, Simon Y. W.
Lawson, Daniel J.
Reidla, Maere
Karmin, Monika
Rootsi, Siiri
Metspalu, Ene
Saag, Lauri
Villems, Richard
Cox, Murray P.
Mitchell, R. John
Garcia-Bertrand, Ralph L.
Metspalu, Mait
Herrera, Rene J.
author_sort Hudjashov, Georgi
collection PubMed
description The debate concerning the origin of the Polynesian speaking peoples has been recently reinvigorated by genetic evidence for secondary migrations to western Polynesia from the New Guinea region during the 2nd millennium BP. Using genome-wide autosomal data from the Leeward Society Islands, the ancient cultural hub of eastern Polynesia, we find that the inhabitants’ genomes also demonstrate evidence of this episode of admixture, dating to 1,700–1,200 BP. This supports a late settlement chronology for eastern Polynesia, commencing ~1,000 BP, after the internal differentiation of Polynesian society. More than 70% of the autosomal ancestry of Leeward Society Islanders derives from Island Southeast Asia with the lowland populations of the Philippines as the single largest potential source. These long-distance migrants into Polynesia experienced additional admixture with northern Melanesians prior to the secondary migrations of the 2nd millennium BP. Moreover, the genetic diversity of mtDNA and Y chromosome lineages in the Leeward Society Islands is consistent with linguistic evidence for settlement of eastern Polynesia proceeding from the central northern Polynesian outliers in the Solomon Islands. These results stress the complex demographic history of the Leeward Society Islands and challenge phylogenetic models of cultural evolution predicated on eastern Polynesia being settled from Samoa.
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spelling pubmed-57890212018-02-08 Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles Hudjashov, Georgi Endicott, Phillip Post, Helen Nagle, Nano Ho, Simon Y. W. Lawson, Daniel J. Reidla, Maere Karmin, Monika Rootsi, Siiri Metspalu, Ene Saag, Lauri Villems, Richard Cox, Murray P. Mitchell, R. John Garcia-Bertrand, Ralph L. Metspalu, Mait Herrera, Rene J. Sci Rep Article The debate concerning the origin of the Polynesian speaking peoples has been recently reinvigorated by genetic evidence for secondary migrations to western Polynesia from the New Guinea region during the 2nd millennium BP. Using genome-wide autosomal data from the Leeward Society Islands, the ancient cultural hub of eastern Polynesia, we find that the inhabitants’ genomes also demonstrate evidence of this episode of admixture, dating to 1,700–1,200 BP. This supports a late settlement chronology for eastern Polynesia, commencing ~1,000 BP, after the internal differentiation of Polynesian society. More than 70% of the autosomal ancestry of Leeward Society Islanders derives from Island Southeast Asia with the lowland populations of the Philippines as the single largest potential source. These long-distance migrants into Polynesia experienced additional admixture with northern Melanesians prior to the secondary migrations of the 2nd millennium BP. Moreover, the genetic diversity of mtDNA and Y chromosome lineages in the Leeward Society Islands is consistent with linguistic evidence for settlement of eastern Polynesia proceeding from the central northern Polynesian outliers in the Solomon Islands. These results stress the complex demographic history of the Leeward Society Islands and challenge phylogenetic models of cultural evolution predicated on eastern Polynesia being settled from Samoa. Nature Publishing Group UK 2018-01-29 /pmc/articles/PMC5789021/ /pubmed/29379068 http://dx.doi.org/10.1038/s41598-018-20026-8 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Hudjashov, Georgi
Endicott, Phillip
Post, Helen
Nagle, Nano
Ho, Simon Y. W.
Lawson, Daniel J.
Reidla, Maere
Karmin, Monika
Rootsi, Siiri
Metspalu, Ene
Saag, Lauri
Villems, Richard
Cox, Murray P.
Mitchell, R. John
Garcia-Bertrand, Ralph L.
Metspalu, Mait
Herrera, Rene J.
Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles
title Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles
title_full Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles
title_fullStr Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles
title_full_unstemmed Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles
title_short Investigating the origins of eastern Polynesians using genome-wide data from the Leeward Society Isles
title_sort investigating the origins of eastern polynesians using genome-wide data from the leeward society isles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5789021/
https://www.ncbi.nlm.nih.gov/pubmed/29379068
http://dx.doi.org/10.1038/s41598-018-20026-8
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