ArticleThe Plant cell2024
The DENSE AND ERECT PANICLE1-GRAIN NUMBER ASSOCIATED module enhances rice yield by repressing CYTOKININ OXIDASE 2 expression.
Article in The Plant cell, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Plant G proteins: Versatile signaling hubs for synergistic improvement of agronomic traits.Journal of integrative plant biology · 2026Review
- Spatial Regulation of Silicon Accumulation in Peduncle Confers Sheathed Spike in Barley.Plant biotechnology journal · 2026Article
- Novel HD-Zip transcription factor PCD8 integrates developmental gene networks to shape rice panicle morphogenesis.BMC plant biology · 2026Article
- High-resolution quantitative trait loci mapping and pyramiding effects of candidate genes for plant height in soybean.The plant genome · 2026Article
- Harnessing brassinosteroid signaling in rice: from molecular pathways to environmentally adaptive breeding.Frontiers in plant science · 2026Review
- An extra-large panicle gene ELP1 from wild rice Oryza officinalis increases grain number and grain yield.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- SP3 and DEP1 Orchestrate Panicle Architecture by Jointly Regulating APO2 Expression in Rice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Grain shape in rice: a Genome-wide association study of the effector genes.BMC plant biology · 2025Article
- Natural variation in GNP3 determines grain number and grain yield in rice.Nature communications · 2025Article
- The G-protein γ subunit DEP1 facilitates brassinosteroid signaling in rice via a MYB-bHLH-ARF module.The Plant cell · 2025Article
- Precise genome editing of Dense and Erect Panicle 1 promotes rice sheath blight resistance and yield production in japonica rice.Plant biotechnology journal · 2025Article
- Unraveling the genetic and molecular bases of heterosis in a TGMS-based two-line rice hybrid derived FFrontiers in plant science · 2025Article
- Identification of quantitative trait loci for yield traits and fine-mapping ofFrontiers in plant science · 2025Article
- Twin embryo formation by induced parthenogenesis.Plant reproduction · 2024Review
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15 authors.
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Abstract
The phytohormone cytokinin (CK) positively regulates the activity of the inflorescence meristem (IM). Cytokinin oxidase 2/Grain number 1a (OsCKX2/Gn1a)-mediated degradation of CK in rice (Oryza sativa L.) negatively regulates panicle grain number, whereas DENSE AND ERECT PANICLE 1 (DEP1) positively regulates grain number per panicle (GNP). However, the detailed regulatory mechanism between DEP1 and OsCKX2 remains elusive. Here, we report the GRAS (GIBBERELLIN ACID INSENSITIVE, REPRESSOR OF GA1, and SCARECROW) transcription factor GRAIN NUMBER ASSOCIATED (GNA), previously thought to be involved in the Brassinosteroids (BRs) signaling pathway, directly inhibits OsCKX2 expression in the IM through a DEP1-GNA regulatory module. Overexpressing GNA leads to increased CK levels and consequently higher branch number, GNP, and yield. Both DEP1 and dep1 enhance the inhibitory effect of GNA on OsCKX2 expression through interacting with GNA. GNA promotes the translocation of DEP1 to the nucleus, while the gain-of-function mutant dep1 translocates into the nucleus in the absence of GNA. Our findings provide insight into the regulatory mechanism underlying OsCKX2 and a strategy to improve rice yield.
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