2026-06-06T20:02:23Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/114342026-02-26T01:05:52Zcom_10259.4_2532com_10259.4_2477com_10259.4_106com_10259_2604col_10259.4_2533

Arauna, Lara R. 27f04138-770f-47cf-9ddf-be59f8e09b06 500 Bergstedt, Jacob 8b79406c-2b9b-4015-9ffd-45bea6efbad4 500 Choin, Jeremy 84130661-68d3-4173-8aa7-667bf387137f 500 Mendoza-Revilla, Javier bcad36ac-b0f0-45ac-90fc-fdebab6a0104 500 Harmant, Christine 1484173c-fe16-4555-a567-b233df2440cb 500 Roux, Maguelonne b1ffc2f3-8855-412e-88e4-ad42a5ced307 500 Mas Sandoval, Alex 81b19fce-683f-40c9-970b-0651ea8f0b6c 600 Lémée, Laure ec5d2740-0ea5-4c0d-b3dd-c8a566aa7c28 500 Colleran, Heidi e1ff58fb-2688-4f91-9229-a6638bb70dc7 500 François, Alexandre be62efed-c9ce-4652-a310-6d72eb4a1522 500 Valentin, Frédérique 32867bc8-90b4-4491-b284-3c8a7107f2bb 500 Cassar, Olivier 6ec3f7bc-c47e-44f2-8dcb-777e01f57b75 500 Gessain, Antoine e58d6418-2de8-4112-8e29-05219a65ff61 500 Quintana-Murci, Lluis 852f721a-d2c4-4d30-a414-eda70e8b6fb2 500 Patin, Etienne 75078f2b-3c59-4b46-8c0b-15df501feb99 500 2026-02-25T17:35:59Z 2026-02-25T17:35:59Z 2022-11 0960-9822 https://hdl.handle.net/10259/11434 10.1016/j.cub.2022.08.055 The Vanuatu archipelago served as a gateway to Remote Oceania during one of the most extensive human migrations to uninhabited lands ∼3,000 years ago. Ancient DNA studies suggest an initial settlement by East Asian-related peoples that was quickly followed by the arrival of Papuan-related populations, leading to a major population turnover. Yet there is uncertainty over the population processes and the sociocultural factors that have shaped the genomic diversity of ni-Vanuatu, who present nowadays among the world’s highest linguistic and cultural diversity. Here, we report new genome-wide data for 1,433 contemporary ni-Vanuatu from 29 different islands, including 287 couples. We find that ni-Vanuatu derive their East Asian- and Papuan-related ancestry from the same source populations and descend from relatively synchronous, sex-biased admixture events that occurred ∼1,700–2,300 years ago, indicating a peopling history common to the whole archipelago. However, East Asian-related ancestry proportions differ markedly across islands, suggesting that the Papuan-related population turnover was geographically uneven. Furthermore, we detect Polynesian ancestry arriving ∼600–1,000 years ago to Central and South Vanuatu in both Polynesian-speaking and non-Polynesian-speaking populations. Last, we provide evidence for a tendency of spouses to carry similar genetic ancestry, when accounting for relatedness avoidance. The signal is not driven by strong genetic effects of specific loci or trait-associated variants, suggesting that it results instead from social assortative mating. Altogether, our findings provide an insight into both the genetic history of ni-Vanuatu populations and how sociocultural processes have shaped the diversity of their genomes. L.R.A. was funded by a Pasteur-Roux-Cantarini fellowship from the Institut Pasteur. The laboratory of Human Evolutionary Genetics is supported by the Institut Pasteur, the Collège de France, the CNRS, the Fondation Allianz-Institut de France, the French Government’s Investissement d’Avenir programme, Laboratoires d’Excellence “Integrative Biology of Emerging Infectious Diseases” (ANR-10-LABX-62-IBEID) and “Milieu Intérieur” (ANR-10-LABX-69-01), the Fondation de France (no. 00106080), the Fondation pour la Recherche Médicale (Equipe FRM DEQ20180339214), and the French National Research Agency (ANR-19-CE35-0005). application/pdf eng Cell Press Current Biology. 2022, V. 32, n. 21, p. 4565-4575.e6 https://doi.org/10.1016/j.cub.2022.08.055 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Pacific Remote Oceania Vanuatu Lapita Peopling Migrations Admixture Genetics Assortative mating Residence rules Genética de poblaciones Population genetics The genomic landscape of contemporary western Remote Oceanians info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Current Biology 32 21 4565 4575.e6 THUMBNAIL Arauna-cb_2022.pdf.jpg Arauna-cb_2022.pdf.jpg IM Thumbnail image/jpeg 2533 https://riubu.ubu.es/bitstream/10259/11434/4/Arauna-cb_2022.pdf.jpg 145696884db8a60563153337c8171d99 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 1362 https://riubu.ubu.es/bitstream/10259/11434/3/license.txt 5d013bfa6e473ff0db22cd82a4d71a70 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/11434/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Arauna-cb_2022.pdf Arauna-cb_2022.pdf application/pdf 8061230 https://riubu.ubu.es/bitstream/10259/11434/1/Arauna-cb_2022.pdf 8a53929bd5f98b386cb4e931b09e0141 MD5 1 10259/11434 oai:riubu.ubu.es:10259/11434 2026-02-26 02:05:52.235 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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