数字农科院2.0

Florigen-like protein OsFTL1 promotes flowering without essential florigens Hd3a and RFT1 in rice

文献类型： 外文期刊

作者： Wei, Shaobo;Cheng, Long;Qian, Hongge;Li, Xia;Shang, Lianguang;Zhou, Yujie;Ye, Xiangyuan;Zhou, Yupeng;Gao, Yuan;Cheng, Lin;Xie, Chen;Yang, Qingwen;Qian, Qian;Zhou, Wenbin

作者机构：

关键词： beneficial haplotype;florigen;flowering time;OsFTL1;rice

期刊名称： JOURNAL OF INTEGRATIVE PLANT BIOLOGY

ISSN： 1672-9072

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版）

摘要： Flowering time is a critical agronomic trait in rice, directly influencing grain yield and adaptability to specific planting regions and seasons. Florigens, including FLOWERING LOCUS T (FT) proteins Hd3a (OsFTL2) and RFT1 (OsFTL3), play central roles in transmitting flowering signals through rice's photoperiod regulatory network. While Hd3a and RFT1 have been extensively studied, the functions and interactions of other FT-like proteins remain unclear, limiting advancements in breeding strategies for early-maturing rice varieties. Here, we demonstrate that the florigen-like protein OsFTL1 forms a florigen activation complex (FAC) and promotes flowering under both short-day and long-day conditions. OsFTL1 localizes to the nucleus and cytoplasm, with predominant expression in the shoot base, facilitating its mobilization to the shoot apical meristem (SAM) to initiate flowering. Overexpression of OsFTL1 (OsFTL1-OE) in leaves or shoot bases significantly accelerates flowering and alters plant architecture. In the nucleus, OsFTL1 interacts with GF14c and OsFD1 to form an FAC, activating OsMADS14 and OsMADS15 expression to drive flowering. Markedly, OsFTL1-OE plants deficient in Hd3a and RFT1 exhibited earlier flowering compared with wild-type plants, indicating that OsFTL1 can independently promote flowering. Furthermore, haplotype analysis identified OsFTL1-Hap3, a beneficial variant associated with early flowering and comparable grain yields. These findings revealed that OsFTL1 can substitute for Hd3a and RFT1 in FAC formation, promoting flowering across photoperiods, and highlighting its potential application in breeding early-maturing, high-yield rice varieties suitable for diverse environments.

分类号：

  • 相关文献

[1]Three FLOWERING LOCUS T-like genes function as potential florigens and mediate photoperiod response in sorghum. Wolabu, Tezera W.,Zhang, Fei,Niu, Lifang,Kalve, Shweta,Tadege, Million,Niu, Lifang,Bhatnagar-Mathur, Pooja,Muszynski, Michael G..

[2]水稻淡褐斑叶突变体lbsll的遗传分析与基因定位. 奉保华,杨杨,施勇烽,林璐,陈洁,黄奇娜,魏彦林,HeiLEUNG,吴建利. 2012

[3]OsBTF3转基因水稻对病原茵侵染的反应和防卫基因的表达分析. 陈华民,吴茂森,何晨阳. 2012

[4]OsCOL16, encoding a CONSTANS-like protein, represses flowering by up regulating Ghd7 expression in rice. Wu, Weixun,Chen, Daibo,Zhang, Yingxin,Sun, Limping,Yang, Zhengfu,Zhao, Chunde,Zhan, Xiaodeng,Shen, Xihong,Yu, Ping,Fu, Yaping,Cao, Liyong,Cheng, Shihua,Wu, Weixun,Chen, Daibo,Zhang, Yingxin,Sun, Limping,Yang, Zhengfu,Zhao, Chunde,Zhan, Xiaodeng,Shen, Xihong,Yu, Ping,Fu, Yaping,Cao, Liyong,Cheng, Shihua,Zheng, Xiao-Ming,Ma, Weiwei,Zhang, Huan,Zhu, Shanshan.

[5]A CONSTANS-like transcriptional activator, OsCOL13, functions as a negative regulator of flowering downstream of OsphyB and upstream of Ehd1 in rice. Sheng, Peike,Tan, Junjie,Liu, Xuanming,Sheng, Peike,Wu, Fuqing,Tan, Junjie,Zhang, Huan,Ma, Weiwei,Chen, Liping,Wang, Jiachang,Wang, Jie,Zhu, Shanshan,Guo, Xiuping,Wang, Jiulin,Zhang, Xin,Cheng, Zhijun,Wu, Chuanyin,Wan, Jianmin,Bao, Yiqun,Wan, Jianmin.

[6]Days to heading 7, a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice. Gao, He,Jin, Mingna,Zheng, Xiao-Ming,Chen, Jun,Zhang, Zhe,Sheng, Peike,Ma, Jin,Ma, Weiwei,Wang, Haiyang,Wu, Chuanyin,Wan, Jianmin,Gao, He,Zhou, Kunneng,Jiang, Ling,Liu, Shijia,Wan, Jianmin,Yuan, Dingyang,Xin, Yeyun,Deng, Huafeng,Yuan, Longping,Wang, Maoqing,Huang, Dongyi.

[7]The transcription factor HBF1 directly activates expression of multiple flowering time repressors to delay rice flowering. Li, Cong,Zhang, Liya,Wang, Xin,Yu, Chunsheng,Zhao, Tao,Liu, Bin,Li, Hongyu,Liu, Jun,Zhang, Chunyu. 2023

[8]bZIP71 delays flowering by suppressing Ehd1 expression in rice. Li, Xiufeng,Tian, Xiaojie,He, Mingliang,Liu, Xinxin,Li, Zhiyong,Tang, Jiaqi,Mei, Enyang,Xu, Min,Liu, Yingxiang,Wang, Zhenyu,Guan, Qingjie,Meng, Wei,Fang, Jun,Zhang, Jian,Bu, Qingyun. 2022

[9]DELAYED HEADING DATE3, Encoding a Heat Shock Transcription Factor, Delays Flowering Time and Improves Yield in Rice (Oryza sativa L.). Liu, Tianzhen,Zhang, Huan,Zhou, Liang,Zhang, Xin,Zhou, Chunlei,Li, Shuai,Cheng, Zhijun,Guo, Xiuping,Zhu, Shanshan,Wan, Jianmin. 2022

[10]Ectopic expression of OsNF-YA8, an endosperm-specific nuclear factor Y transcription-factor gene, causes vegetative and reproductive development defects in rice. Baixiao Niu,Jing Xu,Zhiguo E,Zhenyu Zhang,Xinming Lu,Chen Chen. 2024

[11]Control of floral transition in the bioenergy crop switchgrass. Niu, Lifang,Lin, Hao,Wolabu, Tezera W.,Tadege, Million,Niu, Lifang,Lin, Hao,Fu, Chunxiang,Wang, Zeng-Yu,Wu, Yanqi,Fu, Chunxiang.

[12]Fine-Tuning Florigen Increases Field Yield Through Improving Photosynthesis in Soybean. Kun Xu,Xiao Mei Zhang,Haifeng Chen,Chanjuan Zhang,Jinlong Zhu,Zhiyuan Cheng,Penghui Huang,Xinan Zhou,Yuchen Miao,Xianzhong Feng,Yong Fu Fu. 2021

[13]Fine-Tuning Florigen Increases Field Yield Through Improving Photosynthesis in Soybean. Kun Xu,Xiao Mei Zhang,Haifeng Chen,Chanjuan Zhang,Jinlong Zhu,Zhiyuan Cheng,Penghui Huang,Xinan Zhou,Yuchen Miao,Xianzhong Feng,Yong Fu Fu. 2021

[14]Importance Of The Interaction Between H.eading Date Genes Hd1 A nd Ghd7 For Controlling Yield Traits In Rice. Zhuang, Jie-Yun,Zhen-Hua Zhang. 2019

[15]Joint Qtl Mapping And Transcriptome S.equencing Analysis Reveal Candidate F lowering Time Genes In Brassica Napus L. Zhang, Aoxiang,Yang, Bo,Xu, Xinfu,Wang, Tengyue,Shuang, Lan Shuan,Paterson, Andrew H.,Jian, Hongju,Liu, Min,Liu, Liezhao,Ma, Jinqi,Li, Jiana,Jian, Hongju. 2019

[16]Molecular and geographic evolutionary support for the essential role of GIGANTEAa in soybean domestication of flowering time. Wang, Yan,Gu, Yongzhe,Gao, Huihui,He, Chaoying,Gu, Yongzhe,Gao, Huihui,Qiu, Lijuan,Chang, Ruzhen,Chen, Shouyi. 2016

[17]Expression of the alfalfa CCCH-type zinc finger protein gene MsZFN delays flowering time in transgenic Arabidopsis thaliana. Chao, Yuehui,Zhang, Tiejun,Yang, Qingchuan,Kang, Junmei,Qin, Zhihui,Sun, Yan,Gruber, Margaret Yvonne,Qin, Zhihui. 2014

[18]The Genetic Architecture of Flowering Time and Photoperiod Sensitivity in Maize as Revealed by QTL Review and Meta Analysis. Xu, Jie,Liu, Jian,Cao, Moju,Wang, Jing,Lan, Hai,Lu, Yanli,Pan, Guangtang,Rong, Tingzhao,Liu, Yaxi,Xu, Yunbi,Xu, Yunbi. 2012

[19]A CIB1-LIKE transcription factor GmCIL10 from soybean positively regulates plant flowering. Yang DeGuang,Zhao Wang,Meng YingYing,Li HongYu,Liu Bin. 2015

[20]Identification of Quantitative Trait Loci (QTLs) for Flowering Time Using SSR Marker in Maize under Water Stress. Xiao, YN,Li, XH,Zhang, SH,Wang, XD,Li, MS,Zheng, YL.

作者其他论文 更多>>