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Reference Detail
| Reference | ||
|---|---|---|
| Author | Guo T., Lu Z.Q., Xiong Y., Shan J.X., Ye W.W., Dong N.Q., Kan Y., Yang Y.B., Zhao H.Y., Yu H.X., Guo S.Q., Lei J.J., Liao B., Chai J., Lin H.X. | |
| Title | Optimization of rice panicle architecture by specifically suppressing ligand-receptor pairs. | |
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Abstract: Rice panicle architecture determines the grain number per panicle and therefore impacts grain yield. The OsER1-OsMKKK10-OsMKK4-OsMPK6 pathway shapes panicle architecture by regulating cytokinin metabolism. However, the specific upstream ligands perceived by the OsER1 receptor are unknown. Here, we report that the EPIDERMAL PATTERNING FACTOR (EPF)/EPF-LIKE (EPFL) small secreted peptide family members OsEPFL6, OsEPFL7, OsEPFL8, and OsEPFL9 synergistically contribute to rice panicle morphogenesis by recognizing the OsER1 receptor and activating the mitogen-activated protein kinase cascade. Notably, OsEPFL6, OsEPFL7, OsEPFL8, and OsEPFL9 negatively regulate spikelet number per panicle, but OsEPFL8 also controls rice spikelet fertility. A OsEPFL6 OsEPFL7 OsEPFL9 triple mutant had significantly enhanced grain yield without affecting spikelet fertility, suggesting that specifically suppressing the OsEPFL6-OsER1, OsEPFL7-OsER1, and OsEPFL9-OsER1 ligand-receptor pairs can optimize rice panicle architecture. These findings provide a framework for fundamental understanding of the role of ligand-receptor signaling in rice panicle development and demonstrate a potential method to overcome the trade-off between spikelet number and fertility. |
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| Journal | Nat Commun | |
| Country | China | |
| Volume | 14(1) | |
| Pages | 1640 | |
| Year | 2023 | |
| PubMed ID | 36964129 | |
| PubMed Central ID | 10039049 | |
| DOI | 10.1038/s41467-023-37326-x | |
| URL | - | |
| Relation | ||
| Gene | DSG1 EPF1 EPFL2 EPFL4 EPFL5 EPFL6 EPFL7 EPFL8 EPFL9 RAE2 RLCK204 SMG1 SMG2 STOMAGEN TAC3 _ | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
