Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA

China is rich of germplasm resources of common wild rice (Oryza rufipogon Griff.) and Asian cultivated rice (O. sativa L.) which consists of two subspecies, indica and japonica. Previous studies have shown that China is one of the domestication centers of O. sativa. However, the geographic origin an...

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Main Authors:	Wei, Xin, Wang, Rongsheng, Cao, Lirong, Yuan, Nannan, Huang, Juan, Qiao, Weihua, Zhang, Wanxia, Zeng, Hanlai, Yang, Qingwen
Format:	Online
Language:	English
Published:	Public Library of Science 2012
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3499492/

id	pubmed-3499492
recordtype	oai_dc
spelling	pubmed-34994922012-11-19 Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA Wei, Xin Wang, Rongsheng Cao, Lirong Yuan, Nannan Huang, Juan Qiao, Weihua Zhang, Wanxia Zeng, Hanlai Yang, Qingwen Research Article China is rich of germplasm resources of common wild rice (Oryza rufipogon Griff.) and Asian cultivated rice (O. sativa L.) which consists of two subspecies, indica and japonica. Previous studies have shown that China is one of the domestication centers of O. sativa. However, the geographic origin and the domestication times of O. sativa in China are still under debate. To settle these disputes, six chloroplast loci and four mitochondrial loci were selected to examine the relationships between 50 accessions of Asian cultivated rice and 119 accessions of common wild rice from China based on DNA sequence analysis in the present study. The results indicated that Southern China is the genetic diversity center of O. rufipogon and it might be the primary domestication region of O. sativa. Molecular dating suggested that the two subspecies had diverged 0.1 million years ago, much earlier than the beginning of rice domestication. Genetic differentiations and phylogeography analyses indicated that indica was domesticated from tropical O. rufipogon while japonica was domesticated from O. rufipogon which located in higher latitude. These results provided molecular evidences for the hypotheses of (i) Southern China is the origin center of O. sativa in China and (ii) the two subspecies of O. sativa were domesticated multiple times. Public Library of Science 2012-11-15 /pmc/articles/PMC3499492/ /pubmed/23166706 http://dx.doi.org/10.1371/journal.pone.0049546 Text en © 2012 Wei et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Wei, Xin Wang, Rongsheng Cao, Lirong Yuan, Nannan Huang, Juan Qiao, Weihua Zhang, Wanxia Zeng, Hanlai Yang, Qingwen
spellingShingle	Wei, Xin Wang, Rongsheng Cao, Lirong Yuan, Nannan Huang, Juan Qiao, Weihua Zhang, Wanxia Zeng, Hanlai Yang, Qingwen Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA
author_facet	Wei, Xin Wang, Rongsheng Cao, Lirong Yuan, Nannan Huang, Juan Qiao, Weihua Zhang, Wanxia Zeng, Hanlai Yang, Qingwen
author_sort	Wei, Xin
title	Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA
title_short	Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA
title_full	Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA
title_fullStr	Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA
title_full_unstemmed	Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA
title_sort	origin of oryza sativa in china inferred by nucleotide polymorphisms of organelle dna
description	China is rich of germplasm resources of common wild rice (Oryza rufipogon Griff.) and Asian cultivated rice (O. sativa L.) which consists of two subspecies, indica and japonica. Previous studies have shown that China is one of the domestication centers of O. sativa. However, the geographic origin and the domestication times of O. sativa in China are still under debate. To settle these disputes, six chloroplast loci and four mitochondrial loci were selected to examine the relationships between 50 accessions of Asian cultivated rice and 119 accessions of common wild rice from China based on DNA sequence analysis in the present study. The results indicated that Southern China is the genetic diversity center of O. rufipogon and it might be the primary domestication region of O. sativa. Molecular dating suggested that the two subspecies had diverged 0.1 million years ago, much earlier than the beginning of rice domestication. Genetic differentiations and phylogeography analyses indicated that indica was domesticated from tropical O. rufipogon while japonica was domesticated from O. rufipogon which located in higher latitude. These results provided molecular evidences for the hypotheses of (i) Southern China is the origin center of O. sativa in China and (ii) the two subspecies of O. sativa were domesticated multiple times.
publisher	Public Library of Science
publishDate	2012
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3499492/
_version_	1611924602438549504

Origin of Oryza sativa in China Inferred by Nucleotide Polymorphisms of Organelle DNA

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