ArticlePlant biotechnology journal2020
Rice Big Grain 1 promotes cell division to enhance organ development, stress tolerance and grain yield.
Article in Plant biotechnology journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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29 citing papers in PubMed, 51 citations in OpenAlex.
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- EMS-induced genomic variation and QTL-seq analysis of safflower spininess through whole genome sequencing (WGS).BMC genomics · 2025Article
- Genetic and Molecular Basis for Heat Tolerance in Rice: Strategies for Resilience Under Climate Change.Plants (Basel, Switzerland) · 2025Review
- Identification of key candidate genes regulating hundred-grain weight in the maize inbred line Ye107 from Southern China.Plant cell reports · 2025Article
- Elite haplotype of STRONG1 enhances rice yield by improving lodging resistance, panicle and plant architecture.Nature communications · 2025Article
- CLAVATA signalling shapes barley inflorescence by controlling activity and determinacy of shoot meristem and rachilla.Nature communications · 2025Article
- The Regulation of ROS and Phytohormones in Balancing Crop Yield and Salt Tolerance.Antioxidants (Basel, Switzerland) · 2025Review
- PEG treatment is unsuitable to study root related traits as it alters root anatomy in barley (Hordeum vulgare L.).BMC plant biology · 2024Article
- Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions.Plant physiology · 2024Article
- Discovering New QTNs and Candidate Genes Associated with Rice-Grain-Related Traits within a Collection of Northeast Core Set and Rice Landraces.Plants (Basel, Switzerland) · 2024Article
- Rice Big Grain1 improves grain yield in ectopically expressing rice and heterologously expressing tobacco plants.Plant molecular biology · 2024Article
- Protein Disorder in Plant Stress Adaptation: From Late Embryogenesis Abundant to Other Intrinsically Disordered Proteins.International journal of molecular sciences · 2024Review
- Dissection of quantitative trait nucleotides and candidate genes associated with agronomic and yield-related traits under drought stress in rapeseed varieties: integration of genome-wide association study and transcriptomic analysis.Frontiers in plant science · 2024Article
- Genetic Basis of Grain Size and Weight in Rice, Wheat, and Barley.International journal of molecular sciences · 2023Review
- Rice Big Grain1 enhances biomass and plant growth-promoting traits in rhizospheric yeast Candida tropicalis.Applied microbiology and biotechnology · 2023Article
- Recent Molecular Aspects and Integrated Omics Strategies for Understanding the Abiotic Stress Tolerance of Rice.Plants (Basel, Switzerland) · 2023Review
- Environmental Stimuli: A Major Challenge during Grain Filling in Cereals.International journal of molecular sciences · 2023Review
- The impact of heat stress in plant reproduction.Frontiers in plant science · 2023Review
Corrections and comments
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Authors and funding
14 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Grain/seed yield and plant stress tolerance are two major traits that determine the yield potential of many crops. In cereals, grain size is one of the key factors affecting grain yield. Here, we identify and characterize a newly discovered gene Rice Big Grain 1 (RBG1) that regulates grain and organ development, as well as abiotic stress tolerance. Ectopic expression of RBG1 leads to significant increases in the size of not only grains but also other major organs such as roots, shoots and panicles. Increased grain size is primarily due to elevated cell numbers rather than cell enlargement. RBG1 is preferentially expressed in meristematic and proliferating tissues. Ectopic expression of RBG1 promotes cell division, and RBG1 co-localizes with microtubules known to be involved in cell division, which may account for the increase in organ size. Ectopic expression of RBG1 also increases auxin accumulation and sensitivity, which facilitates root development, particularly crown roots. Moreover, overexpression of RBG1 up-regulated a large number of heat-shock proteins, leading to enhanced tolerance to heat, osmotic and salt stresses, as well as rapid recovery from water-deficit stress. Ectopic expression of RBG1 regulated by a specific constitutive promoter, GOS2, enhanced harvest index and grain yield in rice. Taken together, we have discovered that RBG1 regulates two distinct and important traits in rice, namely grain yield and stress tolerance, via its effects on cell division, auxin and stress protein induction.
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