Native American gene flow into Polynesia predating Easter Island settlement
| Autor: | Alexander J. Mentzer, Juan Esteban Rodríguez-Rodríguez, Kathryn Auckland, Genevieve L. Wojcik, Ricardo A. Verdugo, Carlos Bustamante, Javier Blanco-Portillo, J. Víctor Moreno-Mayar, Mauricio Moraga, Soledad Berríos, M. Acuña, Scott Huntsman, Julian R. Homburger, Juan Francisco Miquel-Poblete, Christopher R. Gignoux, Lucía Cifuentes, Adrian V. S. Hill, Elena Llop, Andrés Moreno-Estrada, Esteban G. Burchard, Kathryn J. H. Robson, Alexandra Sockell, Consuelo D. Quinto-Cortés, Alexander G. Ioannidis, Luisa Herrera, Celeste Eng, Tom Parks, María C. Ávila-Arcos, Karla Sandoval, Kathleen C. Barnes, Erika Hagelberg |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Gene Flow
Native Hawaiian or Other Pacific Islander Time Factors General Science & Technology Human Migration Population Archaeological record ANCESTRY Colombia SWEET-POTATO Polymorphism Single Nucleotide Indigenous Polynesia Gene flow COLONIZATION MEXICO Prehistory 03 medical and health sciences 0302 clinical medicine OCEANIA HISPANIC/LATINO Humans POPULATION-STRUCTURE RAPANUI education 030304 developmental biology Islands 0303 health sciences education.field_of_study Multidisciplinary Science & Technology Native american Genome Human Indians South American Biological anthropology Central America South America Indians Central American History Medieval Multidisciplinary Sciences ADMIXTURE Europe Geography Genetics Population PATTERNS Ethnology Science & Technology - Other Topics Settlement (litigation) 030217 neurology & neurosurgery |
| Popis: | The possibility of voyaging contact between prehistoric Polynesian and Native American populations has long intrigued researchers. Proponents have pointed to the existence of New World crops, such as the sweet potato and bottle gourd, in the Polynesian archaeological record, but nowhere else outside the pre-Columbian Americas1–6, while critics have argued that these botanical dispersals need not have been human mediated7. The Norwegian explorer Thor Heyerdahl controversially suggested that prehistoric South American populations had an important role in the settlement of east Polynesia and particularly of Easter Island (Rapa Nui)2. Several limited molecular genetic studies have reached opposing conclusions, and the possibility continues to be as hotly contested today as it was when first suggested8–12. Here we analyse genome-wide variation in individuals from islands across Polynesia for signs of Native American admixture, analysing 807 individuals from 17 island populations and 15 Pacific coast Native American groups. We find conclusive evidence for prehistoric contact of Polynesian individuals with Native American individuals (around ad 1200) contemporaneous with the settlement of remote Oceania13–15. Our analyses suggest strongly that a single contact event occurred in eastern Polynesia, before the settlement of Rapa Nui, between Polynesian individuals and a Native American group most closely related to the indigenous inhabitants of present-day Colombia. Genomic analyses of DNA from modern individuals show that, about 800 years ago, pre-European contact occurred between Polynesian individuals and Native American individuals from near present-day Colombia, while remote Pacific islands were still being settled. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|