气候变化领域集成服务门户(CCPortal): Genomic architecture of heterosis for yield traits in rice

CCPortal

DOI	10.1038/nature19760
	Genomic architecture of heterosis for yield traits in rice
	Huang, Xuehui; Yang, Shihua; Gong, Junyi; Zhao, Qiang; Feng, Qi; Zhan, Qilin; Zhao, Yan; Li, Wenjun; Cheng, Benyi; Xia, Junhui; Chen, Neng; Huang, Tao; Zhang, Lei; Fan, Danlin; Chen, Jiaying; Zhou, Congcong; Lu, Yiqi; Weng, Qijun; Han, Bin
发表日期	2016
ISSN	0028-0836
EISSN	1476-4687
卷号	537 期号:7622
英文摘要	Increasing grain yield is a long-term goal in crop breeding to meet the demand for global food security. Heterosis, when a hybrid shows higher performance for a trait than both parents, offers an important strategy for crop breeding. To examine the genetic basis of heterosis for yield in rice, here we generate, sequence and record the phenotypes of 10,074 F-2 lines from 17 representative hybrid rice crosses. We classify modern hybrid rice varieties into three groups, representing different hybrid breeding systems. Although we do not find any heterosis-associated loci shared across all lines, within each group, a small number of genomic loci from female parents explain a large proportion of the yield advantage of hybrids over their male parents. For some of these loci, we find support for partial dominance of heterozygous locus for yield-related traits and better-parent heterosis for overall performance when all of the grain-yield traits are considered together. These results inform on the genomic architecture of heterosis and rice hybrid breeding.
学科领域	Science & Technology - Other Topics
语种	英语
WOS研究方向	Multidisciplinary Sciences
来源期刊	NATURE
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/111879
作者单位	Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Natl Ctr Gene Res,CAS Ctr Excellence Mol Plant Sc, Shanghai 200233, Peoples R China
推荐引用方式 GB/T 7714	Huang, Xuehui,Yang, Shihua,Gong, Junyi,et al. Genomic architecture of heterosis for yield traits in rice[J]. 中国科学院西北生态环境资源研究院,2016,537(7622).
APA	Huang, Xuehui.,Yang, Shihua.,Gong, Junyi.,Zhao, Qiang.,Feng, Qi.,...&Han, Bin.(2016).Genomic architecture of heterosis for yield traits in rice.NATURE,537(7622).
MLA	Huang, Xuehui,et al."Genomic architecture of heterosis for yield traits in rice".NATURE 537.7622(2016).