Native American gene flow into Polynesia predating Easter Island settlement.
Native American gene flow into Polynesia predating Easter Island settlement.
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DOI：
10.1038/s41586-020-2487-2
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发表时间：
2020-07
期刊：
影响因子：
64.8
通讯作者：
Moreno-Estrada A
中科院分区：
文献类型：
--
作者：
Ioannidis AG;Blanco-Portillo J;Sandoval K;Hagelberg E;Miquel-Poblete JF;Moreno-Mayar JV;Rodríguez-Rodríguez JE;Quinto-Cortés CD;Auckland K;Parks T;Robson K;Hill AVS;Avila-Arcos MC;Sockell A;Homburger JR;Wojcik GL;Barnes KC;Herrera L;Berríos S;Acuña M;Llop E;Eng C;Huntsman S;Burchard EG;Gignoux CR;Cifuentes L;Verdugo RA;Moraga M;Mentzer AJ;Bustamante CD;Moreno-Estrada A
史前波利尼西亚人和美洲原住民之间航行接触的可能性一直吸引着研究人员。支持者指出，新世界作物，如甘薯和葫芦，在波利尼西亚考古记录中发现，但在前哥伦布美洲以外的其他地方都没有发现，而批评者认为，这些植物传播不一定是人类介导的。挪威探险家托尔·海尔达尔（Thor Heyerdahl）有争议地认为，史前南美洲人在东波利尼西亚，特别是复活节岛（Rapa Nui）的定居中发挥了重要作用。一些有限的分子遗传学研究得出了相反的结论，这种可能性今天仍然像最初提出时一样受到激烈的争论。在这里，我们第一次分析了来自波利尼西亚岛屿的个体的全基因组变异，以寻找美洲原住民混合物的迹象，分析了来自17个岛屿种群和15个太平洋沿岸美洲原住民群体的807个个体。我们发现了波利尼西亚人与美洲原住民史前接触的确凿证据。公元1200年），与遥远的大洋洲的定居点同时代。我们的分析强烈表明，一个单一的接触事件发生在波利尼西亚东部，复活节岛（拉帕努伊）的解决之前，波利尼西亚人和美洲土著群体最密切相关的土著居民今天哥伦比亚。
The possibility of voyaging contact between prehistoric Polynesians and Native Americans has long intrigued researchers. Proponents have pointed to New World crops, such as the sweet potato and bottle gourd, found in the Polynesian archaeological record, but nowhere else outside the pre-Columbian Americas, while critics have argued that these botanical dispersals need not have been human mediated. The Norwegian explorer Thor Heyerdahl controversially suggested that prehistoric South Americans played an important role in the settlement of east Polynesia and particularly Easter Island (Rapa Nui). Several limited molecular genetic studies have reached opposing conclusions, and the possibility continues to be as hotly contested today as it was when first suggested. Here, for the first time, we analyze genome-wide variation in individuals from islands spanning Polynesia for signs of Native American admixture, analyzing 807 individuals from 17 island populations and 15 Pacific coast Native American groups. We find conclusive evidence for prehistoric contact of Polynesians with Native Americans (ca. 1200 CE) contemporaneous with the settlement of remote Oceania. Our analyses suggest strongly that a single contact event occurred in eastern Polynesia, prior to the settlement of Easter Island (Rapa Nui), between Polynesians and a Native American group most closely related to the indigenous inhabitants of present-day Colombia.
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影响因子：
4.5
作者：
Homburger JR;Moreno-Estrada A;Gignoux CR;Nelson D;Sanchez E;Ortiz-Tello P;Pons-Estel BA;Acevedo-Vasquez E;Miranda P;Langefeld CD;Gravel S;Alarcón-Riquelme ME;Bustamante CD
通讯作者：
Bustamante CD
影响因子：
9.2
作者：
Chang CC;Chow CC;Tellier LC;Vattikuti S;Purcell SM;Lee JJ
通讯作者：
Lee JJ
影响因子：
7
作者：
Gusev, Alexander;Lowe, Jennifer K.;Pe'er, Itsik
通讯作者：
Pe'er, Itsik
影响因子：
16.6
作者：
Han E;Carbonetto P;Curtis RE;Wang Y;Granka JM;Byrnes J;Noto K;Kermany AR;Myres NM;Barber MJ;Rand KA;Song S;Roman T;Battat E;Elyashiv E;Guturu H;Hong EL;Chahine KG;Ball CA
通讯作者：
Ball CA
影响因子：
3
作者：
Alexander DH;Lange K
通讯作者：
Lange K