ArticleRice (New York, N.Y.)2018
Overexpression of OsbHLH107, a member of the basic helix-loop-helix transcription factor family, enhances grain size in rice (Oryza sativa L.).
Article in Rice (New York, N.Y.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed.
- The LARGE1 controls grain size by repressing the interaction between PGL2 and APG in rice.The Plant journal : for cell and molecular biology · 2026Article
- The bHLH transcription factor PIL1 orchestrates starch synthesis in key cereal crops.Nature communications · 2025Article
- The Phytochrome-Interacting Factor OsPIL11 Coordinates Grain Weight and Grain Number Via Directly Regulating the Expression of OsMIR530 and OsCKX2 in Rice.Rice (New York, N.Y.) · 2025Article
- bHLH Transcription Factors in Cereal Crops: Diverse Functions in Regulating Growth, Development and Stress Responses.International journal of molecular sciences · 2025Review
- Recent advances in improving yield and immunity through transcription factor engineering.Journal of integrative plant biology · 2025Review
- Uncovering the Genomic Regions Associated with Yield Maintenance in Rice Under Drought Stress Using an Integrated Meta-Analysis Approach.Rice (New York, N.Y.) · 2024Article
- Rice PIFs: Critical regulators in rice development and stress response.Plant molecular biology · 2024Review
- Genetic Localization and Homologous Genes Mining for Barley Grain Size.International journal of molecular sciences · 2023Review
- Basic Helix-Loop-Helix Transcription Factors: Regulators for Plant Growth Development and Abiotic Stress Responses.International journal of molecular sciences · 2023Review
- Fine mapping ofMolecular breeding : new strategies in plant improvement · 2022Article
- Stable sorghum grain quality QTL were identified using SC35 × RTx430 mapping population.The plant genome · 2022Article
- Article
- Meta-analysis of QTLs and candidate genes associated with seed germination in rice (Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Article
- Regulation ofMolecular breeding : new strategies in plant improvement · 2022Article
- Fine mapping and candidate gene analysis of qGSN5, a novel quantitative trait locus coordinating grain size and grain number in rice.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Pepper bHLH transcription factorHorticulture research · 2022Article
- Modulation of Rice Leaf Angle and Grain Size by ExpressingInternational journal of molecular sciences · 2021Article
- Meta-Analysis of Yield-Related and N-Responsive Genes Reveals Chromosomal Hotspots, Key Processes and Candidate Genes for Nitrogen-Use Efficiency in Rice.Frontiers in plant science · 2021Article
- Accumulation of the RNA polymerase subunit RpoB depends on RNA editing by OsPPR16 and affects chloroplast development during early leaf development in rice.The New phytologist · 2020Article
- Genome-wide sRNA and mRNA transcriptomic profiling insights into dynamic regulation of taproot thickening in radish (Raphanus sativus L.).BMC plant biology · 2020Article
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14 authors.
Funding
Abstract
backgroundGrain size, which is determined by grain length, grain width, and grain thickness, is an important determinant for grain yield in rice. Identification and characterization of new genes that are associated with grain size will be helpful for the improvement of grain yield in rice.
resultsWe characterized the grain size mutant, larger grain size 1 (lgs1), derived from rice activation-tagged T-DNA insertion lines. Histological analysis showed that increased cell numbers in the longitudinal direction of spikelet hulls was responsible for the grain mutant phenotype in lgs1. Quantitative real-time PCR (qRT-PCR) analysis further showed that the expression levels of genes associated with the cell cycle in the young panicles of the lgs1 were higher than those in the wild type (WT), which might result in the increased cell numbers in lgs1 spikelet hulls. Insertion site analysis together with transgenic experiments confirmed that the lgs1 phenotype was caused by enhanced expression of truncated OsbHLH107, corresponding to the nucleotide (nt) 331-846 region (i.e., the transcriptional activation region of OsbHLH107) of the OsbHLH107 coding sequence (CDS). OsbHLH107 is a nucleus-localized bHLH transcription factor, which can form a homodimer with itself. Phylogenetic analysis showed that OsbHLH107 belonged to the same subfamily as OsPILs. OsPIL13 (OsPIL1) and OsPIL16 (APG) were reported to regulate grain size in rice. By transgenic experiments, we found that OsPIL11 could also regulate grain size.
conclusionWe concluded that OsbHLH107 and its homologs are important regulators of grain size development and might be useful for grain yield improvement in rice.
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