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Reference Detail
| Reference | ||
|---|---|---|
| Author | Xu R., Duan P., Yu H., Zhou Z., Zhang B., Wang R., Li J., Zhang G., Zhuang S., Lyu J., Li N., Chai T., Tian Z., Yao S., Li Y. | |
| Title | Control of grain size.and Weight by the OsMKKK10-OsMKK4-OsMAPK6 Signaling Pathway in Rice. | |
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Abstract: grain size.is one of the key agronomic traits that determine grain yield in crops. However, the mechanisms underlying grain size.control in crops remain elusive. Here we demonstrate that the OsMKKK10-OsMKK4-OsMAPK6 signaling pathway positively regulates grain size.and weight in rice. In rice, loss of OsMKKK10 function results in small and light grains, short panicles, and semi-dwarf plants, while overexpression of constitutively active OsMKKK10 (CA-OsMKKK10) results in large and heavy grains, long panicles, and tall plants. OsMKKK10 interacts with and phosphorylates OsMKK4. We identified an OsMKK4 gain-of-function mutant (large11-1D) that produces large and heavy grains. OsMKK4A227T encoded by the large11-1D allele has stronger kinase activity than OsMKK4. Plants overexpressing a constitutively active form of OsMKK4 (OsMKK4-DD) also produce large grains. Further biochemical and genetic analyses revealed that OsMKKK10, OsMKK4, and OsMAPK6 function in a common pathway to control grain size. Taken together, our study establishes an important genetic and molecular framework for OsMKKK10-OsMKK4-OsMAPK6 cascade-mediated control of grain size.and weight in rice. |
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| Journal | Mol Plant | |
| Country | China | |
| Volume | 11(6) | |
| Pages | 860-873 | |
| Year | 2018 | |
| PubMed ID | 29702261 | |
| PubMed Central ID | - | |
| DOI | 10.1016/j.molp.2018.04.004 | |
| URL | - | |
| Relation | ||
| Gene | DSG1 SMG1 SMG2 | |
| 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 | - | |
