Mostrar el registro sencillo del ítem
dc.contributor.author | Arauna, Lara R | |
dc.contributor.author | Bergstedt, Jacob | |
dc.contributor.author | Choin, Jeremy | |
dc.contributor.author | Mendoza-Revilla, Javier | |
dc.contributor.author | Harmant, Christine | |
dc.contributor.author | Roux, Maguelonne | |
dc.contributor.author | Mas-Sandoval, Alex | |
dc.contributor.author | Lemee, Laure | |
dc.contributor.author | Colleran, Heidi | |
dc.contributor.author | Francois, Alexandre | |
dc.contributor.author | Valentin, Frederique | |
dc.contributor.author | Cassar, Olivier | |
dc.contributor.author | Gessain, Antoine | |
dc.contributor.author | Quintana-Murci, Lluis | |
dc.contributor.author | Patin, Etienne | |
dc.date.accessioned | 2022-10-12T18:25:59Z | |
dc.date.available | 2022-10-12T18:25:59Z | |
dc.date.issued | 2022 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12866/12395 | |
dc.description.abstract | 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. | en_US |
dc.language.iso | eng | |
dc.publisher | Elsevier | |
dc.relation.ispartofseries | CB | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es | |
dc.subject | Pacific | en_US |
dc.subject | Remote Oceania | en_US |
dc.subject | Vanuatu | en_US |
dc.subject | Lapita | en_US |
dc.subject | peopling | en_US |
dc.subject | migrations | en_US |
dc.subject | admixture | en_US |
dc.subject | genetics | en_US |
dc.subject | assortative mating | en_US |
dc.subject | residence rules | en_US |
dc.title | The genomic landscape of contemporary western Remote Oceanians. | en_US |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | https://doi.org/10.1016/j.cub.2022.08.055 | |
dc.subject.ocde | https://purl.org/pe-repo/ocde/ford#1.06.07 | |
dc.relation.issn | 1879-0445 |
Ficheros | Tamaño | Formato | Ver |
---|---|---|---|
No hay ficheros asociados a este ítem. |