ArticleRice (New York, N.Y.)2024
OsEXPA7 Encoding an Expansin Affects Grain Size and Quality Traits in Rice (Oryza sativa L.).
Article in Rice (New York, N.Y.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Identification of genes controlling grain size in barley through RNA-seq and weighted gene co-expression network analysis.Functional & integrative genomics · 2026Article
- OsvWA36 transcriptionally regulates cell wall remodeling to control grain length in rice.BMC plant biology · 2026Article
- Unraveling dwarfing mechanisms in Hedychium: insights into HcNAC140 and HcEXPA4 functionality.BMC plant biology · 2025Article
- Integrated Transcriptomic and Biochemical Analyses Reveal the Root Development-Promoting Mechanism ofPlants (Basel, Switzerland) · 2025Article
- A DOF transcription factor GLW9/OsDOF25 regulates grain shape and tiller angle in rice.Plant biotechnology journal · 2025Article
- Genetic dissection of QTL for important agronomic traits and fine-mapping of qGL4 and qGW6 based on a short-width grain rice CSSL-Z691.Frontiers in plant science · 2025Article
- Article
- Differential expression and localization of expansins inFrontiers in plant science · 2025Article
- Energy Deficiency and Misdistribution Leads to Disrupted Formation in Grain Yield and Rice Quality.International journal of molecular sciences · 2024Article
- When Size Matters: New Insights on How Seed Size Can Contribute to the Early Stages of Plant Development.Plants (Basel, Switzerland) · 2024Review
- Regulation Mechanism of JA Signaling on the Expansin Gene SlEXPA8 Affecting Sugar Metabolism in Tomato.Physiologia plantarumArticle
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13 authors.
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Abstract
backgroundYield and quality are the two most important traits in crop breeding. Exploring the regulatory mechanisms that affect both yield and quality traits is of great significance for understanding the molecular genetic networks controlling these key crop attributes. Expansins are cell wall loosening proteins that play important roles in regulating rice grain size.
resultsWe investigated the effect of OsEXPA7, encoding an expansin, on rice grain size and quality. OsEXPA7 overexpression resulted in increased plant height, panicle length, grain length, and thousand-grain weight in rice. OsEXPA7 overexpression also affected gel consistency and amylose content in rice grains, thus affecting rice quality. Subcellular localization and tissue expression analyses showed that OsEXPA7 is localized on the cell wall and is highly expressed in the panicle. Hormone treatment experiments revealed that OsEXPA7 expression mainly responds to methyl jasmonate, brassinolide, and gibberellin. Transcriptome analysis and RT-qPCR experiments showed that overexpression of OsEXPA7 affects the expression of OsJAZs in the jasmonic acid pathway and BZR1 and GE in the brassinosteroid pathway. In addition, OsEXPA7 regulates the expression of key quantitative trait loci related to yield traits, as well as regulates the expression levels of BIP1 and bZIP50 involved in the seed storage protein biosynthesis pathway.
conclusionsThese results reveal that OsEXPA7 positively regulates rice yield traits and negatively regulates grain quality traits by involving plant hormone pathways and other trait-related pathway genes. These findings increase our understanding of the potential mechanism of expansins in regulating rice yield and quality traits and will be useful for breeding high-yielding and high-quality rice cultivars.
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