ArticlePlant physiology2022
Florigen repression complexes involving rice CENTRORADIALIS2 regulate grain size.
Article in Plant physiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 26 citations in OpenAlex.
- Decoding heat-induced chalkiness in rice: molecular mechanisms, genetic networks, and mitigation strategies for climate resilience.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Review
- Improved laser capture microdissection combined with transcriptome sequencing reveals gene expression reprogramming during rice panicle branch meristems differentiation.BMC plant biology · 2026Article
- OsMT2b Regulates Pollen Development and ROS Homeostasis in a Photoperiod-Dependent Manner.Plant biotechnology journal · 2026Article
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- A 14-3-3 modulator of seed weight and quality for unlocking the yield potential of soybean.Nature communications · 2025Article
- Induction of Autopolyploidy and Preliminary Investigation of the Dwarfing Mechanism inPlants (Basel, Switzerland) · 2025Article
- Identification of a Novel Rice Chromosomal Translocation Line that Could Cause the Heterozygote Semi-Sterility and be Overcome by Genomic Duplication.Rice (New York, N.Y.) · 2025Article
- TaFT-D1 positively regulates grain weight by acting as a coactivator of TaFDL2 in wheat.Plant biotechnology journal · 2025Article
- Dancing molecules: group A bZIPs and PEBPs at the heart of plant development and stress responses.Journal of experimental botany · 2025Review
- The PEBP genes FLOWERING LOCUS T and TERMINAL FLOWER 1 modulate seed dormancy and size.Journal of experimental botany · 2025Article
- The E3 ligase OsPUB33 controls rice grain size and weight by regulating the OsNAC120-BG1 module.The Plant cell · 2024Article
- Genotype selection identified elite lines through quantitative trait loci mapping of agronomically important traits in wheat.Molecular breeding : new strategies in plant improvement · 2024Article
- Fine Mapping of Five Grain Size QTLs Which Affect Grain Yield and Quality in Rice.International journal of molecular sciences · 2024Article
- Transcriptome and genome-wide analysis of the potential role ofFrontiers in plant science · 2024Article
- Genetic Basis of Grain Size and Weight in Rice, Wheat, and Barley.International journal of molecular sciences · 2023Review
- qGLF5 from Oryza rufipogon Griff. improves kernel shape, plant architecture, and yield in rice.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2023Article
- Article
- Genetic Localization and Homologous Genes Mining for Barley Grain Size.International journal of molecular sciences · 2023Review
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Authors and funding
10 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Grain size is one of the crucial factors determining grain yield. However, the genetic and molecular mechanisms of florigen repression complexes (FRCs) underlying grain size in rice (Oryza sativa L.) have not been reported. Here, we report that the rice CENTRORADIALIS (CEN) family member OsCEN2 (also known as Rice TFL1/CEN homolog, RCN1), a phosphatidylethanolamine-binding protein (PEBP) family protein, negatively controls grain size in rice. Overexpression of OsCEN2 led to small grains, and knockout of OsCEN2 resulted in large, heavy grains. OsCEN2 influenced grain size by restricting cell expansion in the spikelet hull and seed filling. In in vivo and in vitro experiments, OsCEN2 physically interacted with a G-box factor 14-3-3 homolog, GF14f, which negatively regulates grain size. Bimolecular fluorescence complementation and yeast two-hybrid assays revealed that GF14f directly interacts with the basic leucine zipper (bZIP) transcription factor, OsFD2. Plants overexpressing OsFD2 produced smaller and lighter grains than wild-type plants. We found that OsFD2 also influences grain size by controlling cell expansion and division in the spikelet hull. Our results reveal the molecular mechanisms of the OsCEN2-GF14f-OsFD2 regulatory module in controlling grain size. Additionally, our study provides insight into the functions of the FRC in rice and suggests a strategy for improving seed size and weight.
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