气候变化领域集成服务门户(CCPortal): A two-locus interaction causes interspecific hybrid weakness in rice

CCPortal

DOI	10.1038/ncomms4357
	A two-locus interaction causes interspecific hybrid weakness in rice
	Chen, Chen; Chen, Hao; Lin, You-Shun; Shen, Jin-Bo; Shan, Jun-Xiang; Qi, Peng; Shi, Min; Zhu, Mei-Zhen; Huang, Xue-Hui; Feng, Qi; Han, Bin; Jiang, Liwen; Gao, Ji-Ping; Lin, Hong-Xuan
发表日期	2014
ISSN	2041-1723
卷号	5
英文摘要	Reproductive barriers perform a vital role during speciation. Hybrid weakness, the poorer development of hybrids compared with their parents, hinders gene exchange between different species at the postzygotic stage. Here we show that two incompatible dominant loci (Hwi1 and Hwi2) involving three genes are likely to determine the high temperature-dependent expression of hybrid weakness in interspecific hybrids of rice. Hwi1 comprises two leucine-rich repeat receptor-like kinase (LRR-RLK) genes, 25L1 and 25L2, which are specific to wild rice (Oryza rufipogon) and induce hybrid weakness. Hwi2, a rare allele that is predominantly distributed in indica rice (Oryza sativa), encodes a secreted putative subtilisin-like protease. Functional analysis indicated that pyramiding of Hwi1 and Hwi2 activates the autoimmune response in the basal nodes of hybrids, interrupting root formation and then impairing shoot growth. These findings bring new insights into our understanding of reproductive isolation and may benefit rice 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 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/111751
作者单位	Chinese Acad Sci, Natl Ctr Plant Gene Res Shanghai, Shanghai Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet,Shanghai Inst Biol S, Shanghai 200032, Peoples R China
推荐引用方式 GB/T 7714	Chen, Chen,Chen, Hao,Lin, You-Shun,et al. A two-locus interaction causes interspecific hybrid weakness in rice[J]. 中国科学院西北生态环境资源研究院,2014,5.
APA	Chen, Chen.,Chen, Hao.,Lin, You-Shun.,Shen, Jin-Bo.,Shan, Jun-Xiang.,...&Lin, Hong-Xuan.(2014).A two-locus interaction causes interspecific hybrid weakness in rice.NATURE COMMUNICATIONS,5.
MLA	Chen, Chen,et al."A two-locus interaction causes interspecific hybrid weakness in rice".NATURE COMMUNICATIONS 5(2014).