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Reference Detail
| Reference | ||
|---|---|---|
| Author | Yoon H., Shim Y., Yoo S.C., Kang K., Paek N.C. | |
| Title | The Rice CHD3/Mi-2 Chromatin Remodeling Factor Rolled Fine Striped Promotes Flowering Independent of Photoperiod. | |
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Abstract: Genetic studies have revealed that chromatin modifications affect flowering time, but the underlying mechanisms by which chromatin remodeling factors alter flowering remain largely unknown in rice (<i>Oryza sativa</i>). Here, we show that Rolled Fine Striped (RFS), a chromodomain helicase DNA-binding 3 (CHD3)/Mi-2 subfamily ATP-dependent chromatin remodeling factor, promotes flowering in rice. Diurnal expression of <i>RFS</i> peaked at night under short-day (SD) conditions and at dawn under long-day (LD) conditions. The <i>RFS-1</i> and <i>RFS-2</i> mutants (derived from different genetic backgrounds) displayed a late-flowering phenotype under SD and LD conditions. Reverse transcription-quantitative PCR analysis revealed that among the flowering time-related genes, the expression of the major floral repressor <i>Grain number and heading date 7</i> (<i>Ghd7</i>) was mainly upregulated in <i>RFS</i> mutants, resulting in downregulation of its downstream floral inducers, including <i>Early heading date 1</i> (<i>Ehd1</i>), <i>heading date 3a</i> (<i>Hd3a</i>), and <i>Rice FLOWERING LOCUS T 1</i> (<i>RFT1</i>). The <i>RFS</i> mutation had pleiotropic negative effects on rice grain yield and yield components, such as plant height and fertility. Taking these observations together, we propose that <i>RFS</i> participates in multiple aspects of rice development, including the promotion of flowering independent of photoperiod. |
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| Journal | Int J Mol Sci | |
| Country | South Korea | |
| Volume | 22(3) | |
| Pages | ||
| Year | 2021 | |
| PubMed ID | 33525623 | |
| PubMed Central ID | 7865970 | |
| DOI | 10.3390/ijms22031303 | |
| URL | - | |
| Relation | ||
| Gene | EF1 GHD7 HD3A RFS RFT1 | |
| 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 | - | |
