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Reference Detail
| Reference | ||
|---|---|---|
| Author | Miao C., Xiao L., Hua K., Zou C., Zhao Y., Bressan R.A., Zhu J.K. | |
| Title | Mutations in a subfamily of abscisic acid receptor genes promote rice growth and productivity. | |
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Abstract: Abscisic acid (ABA) is a key phytohormone that controls plant growth and stress responses. It is sensed by the pyrabactin resistance 1 (PYR1)/PYR1-like (PYL)/regulatory components of the ABA receptor (RCAR) family of proteins. Here, we utilized CRISPR/Cas9 technology to edit group I (<i>PYL1</i>-<i>PYL6</i> and <i>PYL12</i>) and group II (<i>PYL7</i>-<i>PYL11</i> and <i>PYL13</i>) <i>PYL</i> genes in rice. Characterization of the combinatorial mutants suggested that genes in group I have more important roles in stomatal movement, seed dormancy, and growth regulation than those in group II. Among all of the single <i>pyl</i> mutants, only <i>PYL1</i> and <i>pyl12</i> exhibited significant defects in seed dormancy. Interestingly, high-order group I mutants, but not any group II mutants, displayed enhanced growth. Among group I mutants, <i>PYL1/4/6</i> exhibited the best growth and improved grain productivity in natural paddy field conditions, while maintaining nearly normal seed dormancy. Our results suggest that a subfamily of rice <i>PYLs</i> has evolved to have particularly important roles in regulating plant growth and reveal a genetic strategy to improve rice productivity. |
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| Journal | Proc. Natl. Acad. Sci. U.S.A. | |
| Country | China | |
| Volume | 115(23) | |
| Pages | 6058-6063 | |
| Year | 2018 | |
| PubMed ID | 29784797 | |
| PubMed Central ID | - | |
| DOI | 10.1073/pnas.1804774115 | |
| URL | - | |
| Relation | ||
| Gene | PYL/RCAR1 PYL/RCAR10 PYL/RCAR11 PYL/RCAR13 PYL/RCAR2 PYL/RCAR3 PYL/RCAR4 PYL/RCAR5 PYL/RCAR6 PYL/RCAR7 PYL/RCAR7 PYL/RCAR8 PYL/RCAR9 | |
| 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 | - | |
