气候变化领域集成服务门户(CCPortal): Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis

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DOI	10.1038/ncomms7258
	Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis
	Huang, Xuehui; Yang, Shihua; Gong, Junyi; Zhao, Yan; Feng, Qi; Gong, Hao; Li, Wenjun; Zhan, Qilin; Cheng, Benyi; Xia, Junhui; Chen, Neng; Hao, Zhongna; Liu, Kunyan; Zhu, Chuanrang; Huang, Tao; Zhao, Qiang; Zhang, Lei; Fan, Danlin; Zhou, Congcong; Lu, Yiqi; Weng, Qijun; Wang, Zi-Xuan; Li, Jiayang; Han, Bin
发表日期	2015
ISSN	2041-1723
卷号	6
英文摘要	Exploitation of heterosis is one of the most important applications of genetics in agriculture. However, the genetic mechanisms of heterosis are only partly understood, and a global view of heterosis from a representative number of hybrid combinations is lacking. Here we develop an integrated genomic approach to construct a genome map for 1,495 elite hybrid rice varieties and their inbred parental lines. We investigate 38 agronomic traits and identify 130 associated loci. In-depth analyses of the effects of heterozygous genotypes reveal that there are only a few loci with strong overdominance effects in hybrids, but a strong correlation is observed between the yield and the number of superior alleles. While most parental inbred lines have only a small number of superior alleles, high-yielding hybrid varieties have several. We conclude that the accumulation of numerous rare superior alleles with positive dominance is an important contributor to the heterotic phenomena.
学科领域	Science & Technology - Other Topics
语种	英语
WOS研究方向	Multidisciplinary Sciences
来源期刊	NATURE COMMUNICATIONS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111820
作者单位	Chinese Acad Sci, Collaborat Innovat Ctr Genet & Dev, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol,Natl Ctr Gene Res, Shanghai 200233, Peoples R China
推荐引用方式 GB/T 7714	Huang, Xuehui,Yang, Shihua,Gong, Junyi,et al. Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis[J]. 中国科学院西北生态环境资源研究院,2015,6.
APA	Huang, Xuehui.,Yang, Shihua.,Gong, Junyi.,Zhao, Yan.,Feng, Qi.,...&Han, Bin.(2015).Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis.NATURE COMMUNICATIONS,6.
MLA	Huang, Xuehui,et al."Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis".NATURE COMMUNICATIONS 6(2015).