PROG1 acts upstream of LAZY1 to regulate rice tiller angle as a repressor

作     者：Han Zhang Xiang Li Dajun Sang Linzhou Huang Yuqi Song Mengchen Du Jiajia Cao Wenguang Wang Han Zhang;Xiang Li;Dajun Sang;Linzhou Huang;Yuqi Song;Mengchen Du;Jiajia Cao;Wenguang Wang

作者机构：State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural UniversityTai’an 271018ShandongChina Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2023年第11卷第2期

页      面：386-393页

核心收录：

学科分类：09[农学] 0901[农学-作物学] 

基　　金：supported by the Top Talents Program"One Case One Discussion(Yishiyiyi)"of Shandong Province and the Natural Science Foundation of Shandong Province(ZR2022MC082) 

主　　题：Rice Tiller angle Gravitropism LAZY1 PROG1 

摘      要：Rice tiller angle,as a component of plant architecture,affects rice grain yield via plant ***,the molecular mechanism underlying rice tiller angle remains *** report that the key domestication gene PROSTRATE GROWTH 1(PROG1)controls rice tiller angle by regulating shoot gravitropism and LAZY1(LA1)-mediated asymmetric distribution of *** as a transcriptional repressor,PROG1 negatively regulates the expression of LA1 in light-grown rice *** of LA1 partially rescued the larger tiller angle of the PROG1 complementation transgenic plant(prog1-D).Double-mutant analysis showed that PROG1 acts upstream of LA1 to regulate shoot gravitropism and tiller *** of Suppressors of lazy1(SOL1),encoding DWARF3(D3)acting in the strigolactone signal pathway,suppressed the large tiller angle of prog1-D by rescuing the transcription of *** discovery of a light-sensitive PROG1-LA1 transcription regulatory module controlling rice shoot gravitropism and tiller angle sheds light on the genetic control of rice tiller angle.