ArticleBreeding science2012
An atypical bHLH protein encoded by POSITIVE REGULATOR OF GRAIN LENGTH 2 is involved in controlling grain length and weight of rice through interaction with a typical bHLH protein APG.
Article in Breeding science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.
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Who cites it
61 citing papers in PubMed, 1 synthesis or guideline pooled it, 105 citations in OpenAlex.
- Meta-QTLs, ortho-meta-QTLs and candidate genes for grain yield and associated traits in wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Pooled it
- Common genetic control for grain filling duration and kernel weight in grain sorghum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Unveiling core genomic regions shaping plant architecture, productivity, and seed quality traits in sesame (Sesamum indicum L.): insights from Meta-QTL study into breeding targets.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- Genome-wide association in quality protein maize: identifying key loci for yield enhancement.Journal of applied genetics · 2026Article
- The LARGE1 controls grain size by repressing the interaction between PGL2 and APG in rice.The Plant journal : for cell and molecular biology · 2026Article
- Rapid acquisition of ionomic and morphological data from plant seeds through fast X-ray fluorescence microscopy and computer vision.Plant phenomics (Washington, D.C.) · 2025Article
- Prediction of new candidate proteins and analysis of sub-modules and protein hubs associated with seed development in rice (Oryza sativa) using an ensemble network-based systems biology approach.BMC plant biology · 2025Article
- Trihelix Transcription Factor OsTGS1 Regulates Grain Size and Weight in Rice.Rice (New York, N.Y.) · 2025Article
- Candidate Gene for Kernel-Related Traits in Maize Revealed by a Combination of GWAS and Meta-QTL Analyses.Plants (Basel, Switzerland) · 2025Article
- Genome-Wide Identification of Sorghum Paclobutrazol-Resistance Gene Family and Functional Characterization ofInternational journal of molecular sciences · 2024Article
- Article
- Overexpression of SlPRE3 alters the plant morphologies in Solanum lycopersicum.Plant cell reports · 2023Article
- Construction of High-Density Genetic Map and QTL Mapping for Grain Shape in the Rice RIL Population.Plants (Basel, Switzerland) · 2023Article
- Can the Wild Perennial, Rhizomatous Rice Species Oryza longistaminata be a Candidate for De Novo Domestication?Rice (New York, N.Y.) · 2023Review
- Genetic Localization and Homologous Genes Mining for Barley Grain Size.International journal of molecular sciences · 2023Review
- Wheat Omics: Advancements and Opportunities.Plants (Basel, Switzerland) · 2023Review
- Basic Helix-Loop-Helix Transcription Factors: Regulators for Plant Growth Development and Abiotic Stress Responses.International journal of molecular sciences · 2023Review
- Metabolic engineering of plant secondary metabolites: prospects and its technological challenges.Frontiers in plant science · 2023Review
- The PGS1 basic helix-loop-helix protein regulates Fl3 to impact seed growth and grain yield in cereals.Plant biotechnology journal · 2022Article
- Detection of a major QTL and development of KASP markers for seed weight by combining QTL-seq, QTL-mapping and RNA-seq in peanut.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
1 more citing papers are in PubMed but not listed here.
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Grain size is an important yield component in rice, however, genes controlling the trait remain poorly understood. Previously, we have shown that an antagonistic pair of basic helix-loop-helix (bHLH) proteins, POSITIVE REGULATOR OF GRAIN LENGTH 1 (PGL1) and ANTAGONIST OF PGL1 (APG), is involved in controlling rice grain length. Here, we report the involvement of another atypical bHLH protein gene, POSITIVE REGULATOR OF GRAIN LENGTH 2 (PGL2), in the regulation of rice grain length. Over-expression of PGL2 in the lemma/palea increased grain length and weight in correlation with the level of transgene expression. Observation of the inner epidermal cells of lemma of PGL2-overexpressing lines revealed that the long grain size is caused by an increase in cell length. PGL2 interacts with a typical bHLH protein APG, a negative regulator of rice grain length and weight, in vitro and in vivo. It was reported that overexpression of BU1 (BRASSINOSTEROID UPREGULATED 1), the closest homolog of PGL2, caused an increase in grain length. However, we detected no interaction between BU1 and APG. These findings suggest that PGL2 and PGL1 redundantly suppress the function of APG by forming heterodimers to positively regulate the rice grain length, while the pathway through which BU1, the closest homolog of PGL2, controls grain length is independent of APG.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.