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Reference Detail
| Reference | ||
|---|---|---|
| Author | Li M., Fu D., Xu T., Wu C. | |
| Title | <i>VPB1</i> Encoding BELL-like homeodomain Protein Is Involved in Rice Panicle Architecture. | |
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Abstract: Inflorescence architecture in rice (<i>Oryza sativa</i>) is mainly determined by spikelets and the branch arrangement. Primary branches initiate from inflorescence meristem in a spiral phyllotaxic manner, and further develop into the panicle branches. The branching patterns contribute largely to rice production. In this study, we characterized a rice <i>verticillate primary branch 1</i>(<i>vpb1</i>) mutant, which exhibited a clustered primary branches phenotype. Gene isolation revealed that <i>VPB1</i> was a allele of <i>RI</i>, that it encoded a BELL-like homeodomain (BLH) protein. <i>VPB1</i> gene preferentially expressed in the inflorescence and branch meristems. The arrangement of primary branch meristems was disturbed in the <i>vpb1</i> mutant. Transcriptome analysis further revealed that <i>VPB1</i> affected the expression of some genes involved in inflorescence meristem identity and hormone signaling pathways. In addition, the differentially expressed gene (DEG) promoter analysis showed that <i>OsBOPs</i> involved in boundary organ initiation were potential target genes of VPB1 protein. Electrophoretic mobility shift assay (EMSA) and dual-luciferase reporter system further verified that VPB1 protein bound to the promoter of <i>OsBOP1</i> gene. Overall, our findings demonstrate that <i>VPB1</i> controls inflorescence architecture by regulating the expression of genes involved in meristem maintenance and hormone pathways and by interacting with <i>OsBOP</i> genes. |
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| Journal | Int J Mol Sci | |
| Country | China | |
| Volume | 22(15) | |
| Pages | ||
| Year | 2021 | |
| PubMed ID | 34360677 | |
| PubMed Central ID | 8348756 | |
| DOI | 10.3390/ijms22157909 | |
| URL | - | |
| Relation | ||
| Gene | ARF1 ARF13 ARF16 ARF2 ARF3 ARF6B ARF7A ASP1 BOP1 FON1 GNP1 LHS1 MADS24 MADS58 MFO1 NPY2 PIL13 RAG SH5 SHAT1 SHO1 SNB | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
