ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025
A Novel OsMPK6-OsMADS47-PPKL1/3 Module Controls Grain Shape and Yield in Rice.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Plant G proteins: Versatile signaling hubs for synergistic improvement of agronomic traits.Journal of integrative plant biology · 2026Review
- OsCPN10a, cooperating with OsCPN20 and OsHSP60-3B negatively regulate ABA signaling and enhance seed storability in rice.Journal of integrative plant biology · 2026Article
- Novel HD-Zip transcription factor PCD8 integrates developmental gene networks to shape rice panicle morphogenesis.BMC plant biology · 2026Article
- Integrated Transcriptome and Metabolome Analyses Reveal the Roles of MADS-Box Genes in Regulating Flower Development and Metabolite Accumulation inCurrent issues in molecular biology · 2025Article
- A Novel OsMPK6-OsMADS47-PPKL1/3 Module Controls Grain Shape and Yield in Rice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
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10 authors.
Funding
Abstract
Grain shape is a key determinant of both grain yield and appearance quality in rice. However, the interactions among different regulatory pathways remain unclear. Here, a novel regulatory axis centered on a MADS-box transcription factor (TF) OsMADS47 for controlling rice grain shape is reported. OsMADS47 overexpression results in slender grains, whereas knockout leads to short and small grains. OsMADS47 acts downstream of the OsMKKK10-OsMKK4-OsMPK6 cascade and can be phosphorylated by OsMPK6. Phosphorylation stabilizes OsMADS47 and enhances its transcriptional repression activities on target genes GS3 and GW8, two well-known grain shape regulators. Meanwhile, the Kelch-repeat protein phosphatase PPKL1/3 can dephosphorylate OsMADS47, making it unstable and releasing the transcriptional repression on target genes. Knockdown of OsMPK6 or overexpression of PPKL1/3, GS3, or GW8 partially suppresses the slender-grain phenotype of the OsMADS47 overexpression plants. The results establish an integrated regulation pathway of grain shape and prove the hub gene OsMADS47 as a potential target for breeding rice with optimized appearance quality.
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