Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice

doi:10.1073/pnas.1418204111

	Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice
	Gao, He 1,2; Jin, Mingna 1; Zheng, Xiao-Ming 1; Chen, Jun 1; Yuan, Dingyang 3; Xin, Yeyun 3; Wang, Maoqing 4; Huang, Dongyi 5; Zhang, Zhe 1; Zhou, Kunneng 2
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2014
卷号	111 期号:46 页码:16337-16342
关键词	rice grain yield flowering time photoperiod sensitivity DTH7
ISSN号	0027-8424
DOI	10.1073/pnas.1418204111
通讯作者	Gao, He
英文摘要	Success of modern agriculture relies heavily on breeding of crops with maximal regional adaptability and yield potentials. A major limiting factor for crop cultivation is their flowering time, which is strongly regulated by day length (photoperiod) and temperature. Here we report identification and characterization of Days to heading 7 (DTH7), a major genetic locus underlying photoperiod sensitivity and grain yield in rice. Map-based cloning reveals that DTH7 encodes a pseudo-response regulator protein and its expression is regulated by photoperiod. We show that in long days DTH7 acts downstream of the photoreceptor phytochrome B to repress the expression of Ehd1, an up-regulator of the "florigen" genes (Hd3a and RFT1), leading to delayed flowering. Further, we find that haplotype combinations of DTH7 with Grain number, plant height, and heading date 7 (Ghd7) and DTH8 correlate well with the heading date and grain yield of rice under different photoperiod conditions. Our data provide not only a macroscopic view of the genetic control of photoperiod sensitivity in rice but also a foundation for breeding of rice cultivars better adapted to the target environments using rational design.
学科主题	Multidisciplinary Sciences
语种	英语
出版者	NATL ACAD SCIENCES
WOS记录号	WOS:000345153300040
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4809]
专题	作物科学研究所_转基因中心
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 2.Nanjing Agr Univ, Jiangsu Plant Gene Engn Res Ctr, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China 3.China Natl Hybrid Rice Res & Dev Ctr, State Key Lab Hybrid Rice, Changsha 410125, Hunan, Peoples R China 4.Crop Res & Breeding Ctr Land Reclamanat Heilongji, Harbin 150090, Peoples R China 5.Hainan Univ, Coll Agr, Haikou 570028, Peoples R China
推荐引用方式 GB/T 7714	Gao, He,Jin, Mingna,Zheng, Xiao-Ming,et al. Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2014,111(46):16337-16342.
APA	Gao, He.,Jin, Mingna.,Zheng, Xiao-Ming.,Chen, Jun.,Yuan, Dingyang.,...&Wan, Jianmin.(2014).Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,111(46),16337-16342.
MLA	Gao, He,et al."Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 111.46(2014):16337-16342.