ERF1 delays flowering through direct inhibition of FLOWERING LOCUS T expression in Arabidopsis

作     者：Yanli Chen Liping Zhang Haiyan Zhang Ligang Chen Diqiu Yu Yanli Chen;Liping Zhang;Haiyan Zhang;Ligang Chen;Diqiu Yu

作者机构：CAS Key Laboratory of Tropical Plant Resources and Sustainable UseXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China University of Chinese Academy of SciencesBeijing 100049China Key Laboratory for Plant Diversity and Biogeography of East AsiaKunming Institute of BotanyChinese Academy of SciencesKunming 650201China Center of Economic BotanyCore Botanical GardensChinese Academy of SciencesMenglunMengla 666303China State Key Laboratory for Conservation and Utilization of Bio-Resources in YunnanYunnan UniversityKunming 650091China 

出 版 物：《Journal of Integrative Plant Biology》 (植物学报（英文版）)

年 卷 期：2021年第63卷第10期

页      面：1712-1723页

核心收录：

学科分类：0710[理学-生物学] 07[理学] 09[农学] 071007[理学-遗传学] 0901[农学-作物学] 090102[农学-作物遗传育种] 

基　　金：providing the ocfi7jD/e mutant acs7/2/4/5/6/7/9/11(CS16651),eto2(CS8059),cfr7-7(CS8057),sis1-1(CS3874),and ERFlox(CS6142 and CS6143) also thank Chengbin Xiang(University of Science and Technology of China)for providing ERF7-related materials This study was supported by the Yunnan Fundamental Research Projects(2019FA010 and 2019FB029) the Strategic Leading Science&Technology Programme(XDA24030301)of the Chinese Academy of Sciences 

主　　题：Arabidopsis thaliana ethylene ETHYLENE RESPONSE FACTOR1 floral initiation FLOWERING LOCUS T 

摘      要：ETHYLENE RESPONSE FACTOR1(ERF1)is a key component in ethylene signaling,playing crucial roles in both biotic and abiotic stress ***,we demonstrate that ERF1 also has an important role during floral initiation in Arabidopsis *** or knockout of ERF1 accelerated floral initiation,whereas overexpression of ERF1 dramatically delayed floral *** contrasting phenotypes were correlated with opposite transcript levels of FLOWERING LOCUS T(FT).Chromatin immunoprecipitation(ChIP)assays revealed that ERF1 associates with genomic regions of the FT gene to repress its ***-10/ERF1RNAi plants showed a similar flowering phenotype to the ft-10 mutant,whereas the flowering of FTox/ERF1ox mimicked that of FTox plants,suggesting that ERF1 acts upstream of FT during floral ***,altered floral transition in ethylene-related mutants was also correlated with FT *** analysis suggested that ERF1 also participates in delay in flowering-time control mediated by the ethylene precursor 1-aminocyclopropane-1-carboxylic ***,ERF1 may act as a negative modulator of flowering-time control by repressing FT transcription in Arabidopsis.