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Reference Detail
| Reference | ||
|---|---|---|
| Author | Lv Y., Zhang X., Hu Y., Liu S., Yin Y., Wang X. | |
| Title | BOS1 is a basic helix-loop-helix transcription factor involved in regulating panicle development in rice. | |
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Abstract: Panicle development is crucial to increase the grain yield of rice (<i>Oryza sativa</i>). The molecular mechanisms of the control of panicle development in rice remain unclear. In this study, we identified a mutant with abnormal panicles, termed <i>branch one seed 1-1</i> (<i>bos1-1</i>). The <i>bos1-1</i> mutant showed pleiotropic defects in panicle development, such as the abortion of lateral spikelets and the decreased number of primary panicle branches and secondary panicle branches. A combined map-based cloning and MutMap approach was used to clone <i>BOS1</i> gene. The <i>bos1-1</i> mutation was located in chromosome 1. A T-to-A mutation in <i>BOS1</i> was identified, which changed the codon from TAC to AAC, resulting in the amino acid change from tyrosine to asparagine. <i>BOS1</i> gene encoded a grass-specific basic helix-loop-helix transcription factor, which is a novel allele of the previously cloned <i>LAX PANICLE 1</i> (<i>LAX1</i>) gene. Spatial and temporal expression profile analyses showed that <i>BOS1</i> was expressed in young panicles and was induced by phytohormones. BOS1 protein was mainly localized in the nucleus. The expression of panicle development-related genes, such as <i>OsPIN2</i>, <i>OsPIN3</i>, <i>APO1</i>, and <i>FZP</i>, was changed by <i>bos1-1</i> mutation, suggesting that the genes may be the direct or indirect targets of BOS1 to regulate panicle development. The analysis of <i>BOS1</i> genomic variation, haplotype, and haplotype network showed that <i>BOS1</i> gene had several genomic variations and haplotypes. These results laid the foundation for us to further dissect the functions of BOS1. |
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| Journal | Front Plant Sci | |
| Country | China | |
| Volume | 14 | |
| Pages | 1162828 | |
| Year | 2023 | |
| PubMed ID | 37180398 | |
| PubMed Central ID | 10169713 | |
| DOI | 10.3389/fpls.2023.1162828 | |
| URL | - | |
| Relation | ||
| Gene | APO1 FZP LAX1 LRA1 PIN10A | |
| 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 | - | |
