Reconstructing Native American population history
The peopling of the Americas has been the subject of extensive genetic, archaeological and linguistic research; however, central questions remain unresolved. One contentious issue is whether the settlement occurred by means of a single migration or multiple streams of migration from Siberia. The pat...
Published in: | Nature |
---|---|
Main Author: | |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | https://archive-ouverte.unige.ch/unige:21945 |
id |
ftunivgeneve:oai:unige.ch:aou:unige:21945 |
---|---|
record_format |
openpolar |
spelling |
ftunivgeneve:oai:unige.ch:aou:unige:21945 2023-10-01T03:49:58+02:00 Reconstructing Native American population history Reich, David Ray, Nicolas Excoffier, Laurent Georges Louis 2012 https://archive-ouverte.unige.ch/unige:21945 eng eng info:eu-repo/semantics/altIdentifier/doi/10.1038/nature11258 https://archive-ouverte.unige.ch/unige:21945 unige:21945 info:eu-repo/semantics/restrictedAccess ISSN: 0028-0836 Nature, vol. 488 (2012) p. 370-374 info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Genetics Americas Human Amerindian info:eu-repo/semantics/article Text Article scientifique info:eu-repo/semantics/publishedVersion 2012 ftunivgeneve https://doi.org/10.1038/nature11258 2023-09-07T07:03:37Z The peopling of the Americas has been the subject of extensive genetic, archaeological and linguistic research; however, central questions remain unresolved. One contentious issue is whether the settlement occurred by means of a single migration or multiple streams of migration from Siberia. The pattern of dispersals within the Americas is also poorly understood. To address these questions at a higher resolution than was previously possible, we assembled data from 52 Native American and 17 Siberian groups genotyped at 364,470 single nucleotide polymorphisms. Here we show that Native Americans descend from at least three streams of Asian gene flow. Most descend entirely from a single ancestral population that we call ‘First American'. However, speakers of Eskimo–Aleut languages from the Arctic inherit almost half their ancestry from a second stream of Asian gene flow, and the Na-Dene-speaking Chipewyan from Canada inherit roughly one-tenth of their ancestry from a third stream. We show that the initial peopling followed a southward expansion facilitated by the coast, with sequential population splits and little gene flow after divergence, especially in South America. A major exception is in Chibchan speakers on both sides of the Panama isthmus, who have ancestry from both North and South America. Article in Journal/Newspaper aleut Arctic Chipewyan eskimo* Eskimo–Aleut Siberia Université de Genève: Archive ouverte UNIGE Arctic Canada Nature 488 7411 370 374 |
institution |
Open Polar |
collection |
Université de Genève: Archive ouverte UNIGE |
op_collection_id |
ftunivgeneve |
language |
English |
topic |
info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Genetics Americas Human Amerindian |
spellingShingle |
info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Genetics Americas Human Amerindian Reich, David Reconstructing Native American population history |
topic_facet |
info:eu-repo/classification/ddc/333.7-333.9 info:eu-repo/classification/ddc/550 Genetics Americas Human Amerindian |
description |
The peopling of the Americas has been the subject of extensive genetic, archaeological and linguistic research; however, central questions remain unresolved. One contentious issue is whether the settlement occurred by means of a single migration or multiple streams of migration from Siberia. The pattern of dispersals within the Americas is also poorly understood. To address these questions at a higher resolution than was previously possible, we assembled data from 52 Native American and 17 Siberian groups genotyped at 364,470 single nucleotide polymorphisms. Here we show that Native Americans descend from at least three streams of Asian gene flow. Most descend entirely from a single ancestral population that we call ‘First American'. However, speakers of Eskimo–Aleut languages from the Arctic inherit almost half their ancestry from a second stream of Asian gene flow, and the Na-Dene-speaking Chipewyan from Canada inherit roughly one-tenth of their ancestry from a third stream. We show that the initial peopling followed a southward expansion facilitated by the coast, with sequential population splits and little gene flow after divergence, especially in South America. A major exception is in Chibchan speakers on both sides of the Panama isthmus, who have ancestry from both North and South America. |
author2 |
Ray, Nicolas Excoffier, Laurent Georges Louis |
format |
Article in Journal/Newspaper |
author |
Reich, David |
author_facet |
Reich, David |
author_sort |
Reich, David |
title |
Reconstructing Native American population history |
title_short |
Reconstructing Native American population history |
title_full |
Reconstructing Native American population history |
title_fullStr |
Reconstructing Native American population history |
title_full_unstemmed |
Reconstructing Native American population history |
title_sort |
reconstructing native american population history |
publishDate |
2012 |
url |
https://archive-ouverte.unige.ch/unige:21945 |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
aleut Arctic Chipewyan eskimo* Eskimo–Aleut Siberia |
genre_facet |
aleut Arctic Chipewyan eskimo* Eskimo–Aleut Siberia |
op_source |
ISSN: 0028-0836 Nature, vol. 488 (2012) p. 370-374 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/nature11258 https://archive-ouverte.unige.ch/unige:21945 unige:21945 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1038/nature11258 |
container_title |
Nature |
container_volume |
488 |
container_issue |
7411 |
container_start_page |
370 |
op_container_end_page |
374 |
_version_ |
1778517896622768128 |