Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.

<h4>Background</h4>At the southern entrance to East Asia, early population migration has affected most of the Y-chromosome variations of East Asians.<h4>Methodology/principal findings</h4>To assess the isolated genetic structure of Hainan Island and the original genetic struc...

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Autores principales:	Dongna Li, Hui Li, Caiying Ou, Yan Lu, Yuantian Sun, Bo Yang, Zhendong Qin, Zhenjian Zhou, Shilin Li, Li Jin
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2008
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9843ada7c3114b0689d23745e860e553
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spelling	oai:doaj.org-article:9843ada7c3114b0689d23745e860e5532021-11-25T06:12:29ZPaternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.1932-620310.1371/journal.pone.0002168https://doaj.org/article/9843ada7c3114b0689d23745e860e5532008-05-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18478090/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>At the southern entrance to East Asia, early population migration has affected most of the Y-chromosome variations of East Asians.<h4>Methodology/principal findings</h4>To assess the isolated genetic structure of Hainan Island and the original genetic structure at the southern entrance, we studied the Y chromosome diversity of 405 Hainan Island aborigines from all the six populations, who have little influence of the recent mainland population relocations and admixtures. Here we report that haplogroups O1a* and O2a* are dominant among Hainan aborigines. In addition, the frequency of the mainland dominant haplogroup O3 is quite low among these aborigines, indicating that they have lived rather isolated. Clustering analyses suggests that the Hainan aborigines have been segregated since about 20 thousand years ago, after two dominant haplogroups entered East Asia (31 to 36 thousand years ago).<h4>Conclusions/significance</h4>Our results suggest that Hainan aborigines have been isolated at the entrance to East Asia for about 20 thousand years, whose distinctive genetic characteristics could be used as important controls in many population genetic studies.Dongna LiHui LiCaiying OuYan LuYuantian SunBo YangZhendong QinZhenjian ZhouShilin LiLi JinPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 3, Iss 5, p e2168 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dongna Li Hui Li Caiying Ou Yan Lu Yuantian Sun Bo Yang Zhendong Qin Zhenjian Zhou Shilin Li Li Jin Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.
description	<h4>Background</h4>At the southern entrance to East Asia, early population migration has affected most of the Y-chromosome variations of East Asians.<h4>Methodology/principal findings</h4>To assess the isolated genetic structure of Hainan Island and the original genetic structure at the southern entrance, we studied the Y chromosome diversity of 405 Hainan Island aborigines from all the six populations, who have little influence of the recent mainland population relocations and admixtures. Here we report that haplogroups O1a* and O2a* are dominant among Hainan aborigines. In addition, the frequency of the mainland dominant haplogroup O3 is quite low among these aborigines, indicating that they have lived rather isolated. Clustering analyses suggests that the Hainan aborigines have been segregated since about 20 thousand years ago, after two dominant haplogroups entered East Asia (31 to 36 thousand years ago).<h4>Conclusions/significance</h4>Our results suggest that Hainan aborigines have been isolated at the entrance to East Asia for about 20 thousand years, whose distinctive genetic characteristics could be used as important controls in many population genetic studies.
format	article
author	Dongna Li Hui Li Caiying Ou Yan Lu Yuantian Sun Bo Yang Zhendong Qin Zhenjian Zhou Shilin Li Li Jin
author_facet	Dongna Li Hui Li Caiying Ou Yan Lu Yuantian Sun Bo Yang Zhendong Qin Zhenjian Zhou Shilin Li Li Jin
author_sort	Dongna Li
title	Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.
title_short	Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.
title_full	Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.
title_fullStr	Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.
title_full_unstemmed	Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.
title_sort	paternal genetic structure of hainan aborigines isolated at the entrance to east asia.
publisher	Public Library of Science (PLoS)
publishDate	2008
url	https://doaj.org/article/9843ada7c3114b0689d23745e860e553
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Paternal genetic structure of Hainan aborigines isolated at the entrance to East Asia.

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