Evidence map›Paper›PMID 42169405›Full record

ArticlePlant communications2026

OsFTL1 integrates circadian and photoperiodic signals to optimize flowering time for ecological adaptation in rice.

Ling Liu, Siyu Wen, Peng Xu, Qinqin Yang, Tao Liu, Guifang Ma, Xiaoxia Wen, Baobi Wang, Zhaozhong Wu, Mili Luo and 12 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Plant communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

22 authors.

Ling LiuChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China; National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
Siyu WenSchool of Tropical Agriculture and Forestry, Hainan University, Haikou 570288, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572024, China.
Peng XuChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China; Key Laboratory of Northern Japonica Rice Research in Heilongjiang Province, Shuangyashan 155600, China; Institute of Crops and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China.
Qinqin YangChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Tao LiuChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Guifang MaChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Xiaoxia WenChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Baobi WangChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Zhaozhong WuChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Mili LuoChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Junming ZhouChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Yingxin ZhangChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Qunen LiuChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Yongbo HongChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Daibo ChenChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Xihong ShenChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Xiaodeng ZhanChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China.
Yuqing HeNational Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
Xiao-Ming ZhengNational Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya 572024, China; State Key Laboratory of Crop Gene Resources and Breeding/Key Laboratory of Grain Crop Genetic Resources Evaluation and Utilization, Ministry of Agriculture and Rural Affairs, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Electronic address: zhengxm@ibcas.ac.cn.
Liyong CaoChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China; Key Laboratory of Northern Japonica Rice Research in Heilongjiang Province, Shuangyashan 155600, China. Electronic address: caoliyong@caas.cn.
Shihua ChengChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China. Electronic address: chengshihua@caas.cn.
Weixun WuChina National Center for Rice Improvement and State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou 310006, China. Electronic address: wuweixun@caas.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Developing early-maturing rice (Oryza sativa) varieties is essential for improving regional adaptation, but requires precise regulation of flowering time without yield penalties. Here, we show that natural variation at OsFTL1, which encodes a phosphatidylethanolamine-binding protein, integrates circadian and photoperiodic pathways to control heading date. In multi-environment trials, the agronomically favorable OsFTL1 allele from the near-isogenic line NIL(qHD1b) consistently accelerated flowering by approximately 1 week compared with the OsFTL1 allele from ZH8015 without reducing yield, and transgenic analyses confirmed its dosage-dependent promotion of flowering. At the molecular level, we demonstrate that OsFTL1 functions as a florigen downstream of the central integrator Ehd1, defining a florigenic branch parallel to Hd3a and RFT1. OsFTL1 physically interacts with the flowering repressor Ghd7, competitively inhibiting its association with the 14-3-3 protein GF14c and thereby regulating florigen activation complex formation at the post-translational level. The circadian oscillator OsCCA1 directly activates OsFTL1 through polymorphic MYB-binding sites, with the NIL(qHD1b) promoter showing enhanced responsiveness due to an additional site. Population genetic analyses further revealed that the regulatory variation in OsFTL1 underwent strong selection during the northward expansion of japonica rice, with distinct haplotypes exhibiting different promoter activities and cis-element compositions. Collectively, our study elucidates how OsFTL1 balances early maturity and yield by integrating environmental and endogenous signals, revealing a novel regulatory mechanism underlying ecological adaptation in rice and providing allele-specific strategies for molecular design breeding.

Indexed as

Circadian RhythmFlowersOryzaPhosphatidylethanolamine Binding ProteinPhotoperiodPlant ProteinsAdaptation, PhysiologicalFlorigenGene Expression Regulation, PlantFlorigenPhosphatidylethanolamine Binding ProteinPlant Proteinscircadian regulationecological adaptationheading datemolecular breedingOsFTL1rice

Identifiers

PMID42169405
PMCPMC13681686

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