气候变化领域集成服务门户(CCPortal): A critical role of the soybean evening complex in the control of photoperiod sensitivity and adaptation

CCPortal

DOI	10.1073/pnas.2010241118
	A critical role of the soybean evening complex in the control of photoperiod sensitivity and adaptation
	Bu T.; Lu S.; Wang K.; Dong L.; Li S.; Xie Q.; Xu X.; Cheng Q.; Chen L.; Fang C.; Li H.; Liu B.; Weller J.L.; Kong F.
发表日期	2021
ISSN	00278424
卷号	118 期号:8
英文摘要	Photoperiod sensitivity is a key factor in plant adaptation and crop production. In the short-day plant soybean, adaptation to low latitude environments is provided by mutations at the J locus, which confer extended flowering phase and thereby improve yield. The identity of J as an ortholog of Arabidopsis ELF3, a component of the circadian evening complex (EC), implies that orthologs of other EC components may have similar roles. Here we show that the two soybean homeologs of LUX ARRYTHMO interact with J to form a soybean EC. Characterization of mutants reveals that these genes are highly redundant in function but together are critical for flowering under short day, where the lux1 lux2 double mutant shows extremely late flowering and a massively extended flowering phase. This phenotype exceeds that of any soybean flowering mutant reported to date, and is strongly reminiscent of the “Maryland Mammoth” tobacco mutant that featured in the seminal 1920 study of plant photoperiodism by Garner and Allard [W. W. Garner, H. A. Allard, J. Agric. Res. 18, 553–606 (1920)]. We further demonstrate that the J–LUX complex suppresses transcription of the key flowering repressor E1 and its two homologs via LUX binding sites in their promoters. These results indicate that the EC–E1 interaction has a central role in soybean photoperiod sensitivity, a phenomenon also first described by Garner and Allard. EC and E1 family genes may therefore constitute key targets for customized breeding of soybean varieties with precise flowering time adaptation, either by introgression of natural variation or generation of new mutants by gene editing. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Adaptation; Evening complex (EC); Flowering; LUX ARRHYTHMO (LUX); Soybean
语种	英语
scopus关键词	article; binding site; breeding; flower development; gene editing; introgression; male; mammoth; Maryland; nonhuman; phenotype; photoperiodicity; promoter region; repressor gene; soybean; tobacco
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180598
作者单位	Innovative Center of Molecular Genetics and Evolution, School of Life Sciences, Guangzhou University, Guangzhou, 510006, China; State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China; Innovative Academy of Seed Design, Key Laboratory of Soybean Molecular Design Breeding, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081, China; School of Natural Sciences, University of Tasmania, Hobart, TAS 7001, Australia
推荐引用方式 GB/T 7714	Bu T.,Lu S.,Wang K.,et al. A critical role of the soybean evening complex in the control of photoperiod sensitivity and adaptation[J],2021,118(8).
APA	Bu T..,Lu S..,Wang K..,Dong L..,Li S..,...&Kong F..(2021).A critical role of the soybean evening complex in the control of photoperiod sensitivity and adaptation.Proceedings of the National Academy of Sciences of the United States of America,118(8).
MLA	Bu T.,et al."A critical role of the soybean evening complex in the control of photoperiod sensitivity and adaptation".Proceedings of the National Academy of Sciences of the United States of America 118.8(2021).