- Information
- Symbol: OsMYBGA,OsGAMYB
- MSU: LOC_Os01g59660
- RAPdb: Os01g0812000
- PSP score
- LOC_Os01g59660.2: 0.8122
- LOC_Os01g59660.1: 0.8122
- LOC_Os01g59660.3: 0.5512
- LOC_Os01g59660.4: 0.6479
- PLAAC score
- LOC_Os01g59660.2: 0
- LOC_Os01g59660.1: 0
- LOC_Os01g59660.3: 0
- LOC_Os01g59660.4: 0
- pLDDT score
- 53.79
- Protein Structure from AlphaFold and UniProt
- Publication
- A RING finger E3 ligase gene, Oryza sativa Delayed Seed Germination 1 OsDSG1, controls seed germination and stress responses in rice, 2010, Plant Mol Biol.
- Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone, 2003, Plant Physiol.
- Convergent starvation signals and hormone crosstalk in regulating nutrient mobilization upon germination in cereals, 2012, Plant Cell.
- Gibberellin modulates anther development in rice via the transcriptional regulation of GAMYB, 2009, Plant Cell.
- Two cis-acting elements necessary and sufficient for gibberellin-upregulated proteinase expression in rice seeds, 2003, The Plant Journal.
- GAMYB controls different sets of genes and is differentially regulated by microRNA in aleurone cells and anthers, 2006, Plant J.
- Identification of gamyb-4 and analysis of the regulatory role of GAMYB in rice anther development, 2010, J Integr Plant Biol.
- Loss-of-function mutations of the rice GAMYB gene impair alpha-amylase expression in aleurone and flower development, 2004, Plant Cell.
- A rice WRKY gene encodes a transcriptional repressor of the gibberellin signaling pathway in aleurone cells, 2004, Plant Physiol.
- Rice dwarf mutantd1, which is defective in the a subunit of the heterotrimeric G protein, affects gibberellin signal transduction, 2000, Proc Natl Acad Sci U S A.
- Interaction between rice MYBGA and the gibberellin response element controls tissue-specific sugar sensitivity of alpha-amylase genes, 2006, Plant Cell.
- Genbank accession number
- Key message
- Mutation of the two W boxes prevents the binding of OsWRKY71 to the mutated promoter, and releases the suppression of the OsGAMYB-activated Amy32b expression by OsWRKY71, suggesting that OsWRKY71 blocks GA signaling by functionally interfering with OsGAMYB
- High-level OsGAMYB expression was detected in the aleurone cells, inflorescence shoot apical region, stamen primordia, and tapetum cells of the anther, but only low-level expression occurred in organs at the vegetative stage or in the elongating stem
- No alpha-amylase expression in the endosperm was induced in these mutants in response to GA treatment, indicating that the Tos17 insertion had knocked out OsGAMYB function
- The sequences were also required for effective transactivation by the transcription factor OsGAMyb
- These results demonstrate that, in addition to its role in the induction of alpha-amylase in aleurone, OsGAMYB also is important for floral organ development and essential for pollen development
- Thus, OsGAMYB and OsGAMYB-like genes are regulated by miR159 in flowers
- Four copies of either GARE or CARE showed transactivation neither by OsGAMyb nor by GA induction
- Connection
- OsMYBGA~OsGAMYB, RPBF~OsDof3, Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone, In this study, I have evaluated cooperative function of GAMYB and a pyrimidine box-binding protein OsDOF3 that influenced the promoter activity of the most predominant GA-responsive gene (RAmy1A) of rice (Oryza sativa)
- OsMYBGA~OsGAMYB, RPBF~OsDof3, Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone, Transient expression of OsDOF3 in the germinated aleurone prolonged GAMYB function on the reporter expression in the absence of GA
- OsMYBGA~OsGAMYB, RPBF~OsDof3, Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone, The yeast two-hybrid assay showed the physical interaction of GAMYB and OsDOF3 in yeast cells, indicating that the association of GAMYB and OsDOF3 may be a functional unit in transcription regulation
- AmyI-1~RAmy1A, OsMYBGA~OsGAMYB, Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone, In this study, I have evaluated cooperative function of GAMYB and a pyrimidine box-binding protein OsDOF3 that influenced the promoter activity of the most predominant GA-responsive gene (RAmy1A) of rice (Oryza sativa)
- AmyI-1~RAmy1A, OsMYBGA~OsGAMYB, Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone, Functional dissections between GAMYB and Dof transcription factors suggest a role for protein-protein associations in the gibberellin-mediated expression of the RAmy1A gene in the rice aleurone
- OsMYBGA~OsGAMYB, OsMYBS1, Convergent starvation signals and hormone crosstalk in regulating nutrient mobilization upon germination in cereals, This study reveals two crucial transcription factors, MYBS1 and MYBGA, present in rice (Oryza sativa) and barley (Hordeum vulgare), that function to integrate diverse nutrient starvation and gibberellin (GA) signaling pathways during germination of cereal grains
- OsMYBGA~OsGAMYB, OsMYBS1, Convergent starvation signals and hormone crosstalk in regulating nutrient mobilization upon germination in cereals, GA antagonizes sugar repression by enhancing conuclear transport of the GA-inducible MYBGA with MYBS1 and the formation of a stable bipartite MYB-DNA complex to activate the alpha-amylase gene
- OsMYBGA~OsGAMYB, OsMYBS1, Convergent starvation signals and hormone crosstalk in regulating nutrient mobilization upon germination in cereals, We further discovered that not only sugar but also nitrogen and phosphate starvation signals converge and interconnect with GA to promote the conuclear import of MYBS1 and MYBGA, resulting in the expression of a large set of GA-inducible but functionally distinct hydrolases, transporters, and regulators associated with mobilization of the full complement of nutrients to support active seedling growth in cereals
- CYP703A3, OsMYBGA~OsGAMYB, Gibberellin modulates anther development in rice via the transcriptional regulation of GAMYB, Together, these results suggest that GA regulates exine formation and the PCD of tapetal cells and that direct activation of CYP703A3 by GAMYB is key to exine formation
- OsMYBGA~OsGAMYB, SLR1~OsGAI, GAMYB controls different sets of genes and is differentially regulated by microRNA in aleurone cells and anthers, A microarray analysis revealed that OsGAMYB and its upstream regulator SLR1 are involved in the regulation of almost all GA-mediated gene expression in rice aleurone cells
- OsMYBGA~OsGAMYB, TDR, Identification of gamyb-4 and analysis of the regulatory role of GAMYB in rice anther development, These results revealed that the expression of TDR (TAPETUM DEGENERATION RETARDATION), a tapetal cell death regulator, was downregulated in gamyb-4 and udt1 (undeveloped tapetum1)
- OsMYBGA~OsGAMYB, TDR, Identification of gamyb-4 and analysis of the regulatory role of GAMYB in rice anther development, While the GAMYB expression was not obviously changed in tdr and udt1-1, and no apparent expression fold change of UDT1 in tdr and gamyb-4, suggesting that TDR may act downstream of GAMYB and UDT1, and GAMYB and UDT1 work in parallel to regulate rice early anther development
- OsMYBGA~OsGAMYB, Udt1, Identification of gamyb-4 and analysis of the regulatory role of GAMYB in rice anther development, These results revealed that the expression of TDR (TAPETUM DEGENERATION RETARDATION), a tapetal cell death regulator, was downregulated in gamyb-4 and udt1 (undeveloped tapetum1)
- OsMYBGA~OsGAMYB, Udt1, Identification of gamyb-4 and analysis of the regulatory role of GAMYB in rice anther development, While the GAMYB expression was not obviously changed in tdr and udt1-1, and no apparent expression fold change of UDT1 in tdr and gamyb-4, suggesting that TDR may act downstream of GAMYB and UDT1, and GAMYB and UDT1 work in parallel to regulate rice early anther development
- OsMYBGA~OsGAMYB, OsWRKY71, A rice WRKY gene encodes a transcriptional repressor of the gibberellin signaling pathway in aleurone cells, Moreover, OsWRKY71 blocks the activation of the Amy32b promoter by the GA-inducible transcriptional activator OsGAMYB
- OsMYBGA~OsGAMYB, OsWRKY71, A rice WRKY gene encodes a transcriptional repressor of the gibberellin signaling pathway in aleurone cells, Mutation of the two W boxes prevents the binding of OsWRKY71 to the mutated promoter, and releases the suppression of the OsGAMYB-activated Amy32b expression by OsWRKY71, suggesting that OsWRKY71 blocks GA signaling by functionally interfering with OsGAMYB
- D1~RGA1, OsMYBGA~OsGAMYB, Rice dwarf mutantd1, which is defective in the a subunit of the heterotrimeric G protein, affects gibberellin signal transduction, Relative to the wild type, the GA(3)-treated aleurone layer of d1 had lower expression of Ramy1A, which encodes alpha-amylase, and OsGAMYB, which encodes a GA-inducible transcriptional factor, and no increase in expression of Ca(2 +)-ATPase
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