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Reference Detail
| Reference | ||
|---|---|---|
| Author | Huang Y., Song J., Hao Q., Mou C., Wu H., Zhang F., Zhu Z., Wang P., Ma T., Fu K., Chen Y., Nguyen T., Liu S., Jiang L., Wan J. | |
| Title | WEAK seed dormancy 1, an aminotransferase protein, regulates seed dormancy in rice through the GA and ABA pathways. | |
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Abstract: seed dormancy is a critical trait that enhances plant survival by preventing seed germination at the wrong time or under unsuitable conditions. Lack of seed dormancy in rice can lead to pre-harvest sprouting on mother plants leading to reduced yield and seed quality. Although some genes have been identified, knowledge of regulation of seed dormancy is limited. Here, we characterized a weak seed dormancy mutant named weak seed dormancy 1 (WSD1) that showed a higher seed germination percentage than the wild-type following the harvest ripeness. We cloned the WSD1 encoding an aminotransferase protein using a MutMap approach. WSD1 was stably expressed after imbibition and its protein was localized in the endoplasm reticulum. A widely targeted metabolomics assay and amino acid analysis showed that WSD1 had a role in regulating homeostasis of amino acids. PAC treatment and RNA-seq analysis showed that WSD1 regulates seed dormancy by involvement in the GA biosynthesis pathway. GA1 content and expression of GA biosynthesis-related genes were increased in the WSD1 mutant compared with the wild-type. The WSD1 mutant had reduced sensitivity to ABA. Our overall results indicated that WSD1 regulates seed dormancy by balancing the ABA and GA pathways. |
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| Journal | Plant Physiol. Biochem. | |
| Country | China | |
| Volume | 202 | |
| Pages | 107923 | |
| Year | 2023 | |
| PubMed ID | 37549571 | |
| PubMed Central ID | - | |
| DOI | 10.1016/j.plaphy.2023.107923 | |
| URL | - | |
| Relation | ||
| Gene | BZIP72 CPS1 D18 KO4 KS1 WSD1 | |
| 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 | - | |
