- Information
- Symbol: KRP1
- MSU: LOC_Os02g52480
- RAPdb: Os02g0762400
- PSP score
- LOC_Os02g52480.1: 0.125
- PLAAC score
- LOC_Os02g52480.1: 0
- pLDDT score
- 61.3
- Protein Structure from AlphaFold and UniProt
- Publication
- Genbank accession number
- Key message
- Phenotypic analysis revealed that overexpressed KRP1 reduced cell production during leaf development
- The cyclin-dependent kinase inhibitor Orysa;KRP1 plays an important role in seed development of rice
- Also, spatial and temporal transcript detection in developing seeds suggests that Orysa;KRP1 plays an important role in the exit from the mitotic cell cycle during rice grain formation
- However, phyB mutants exhibited reduced total leaf area per plant, which was probably due to a reduction in the total number of cells per leaf caused by enhanced expression of Orysa;KRP1 and Orysa;KRP4 (encoding inhibitors of cyclin-dependent kinase complex activity) in the phyB mutants
- Sectioning through the overexpressed KRP1 seeds showed that KRP overproduction disturbed the production of endosperm cells
- The decrease in the number of fully formed seeds was accompanied by a drop in the endoreduplication of endosperm cells, pointing toward a role of KRP1 in connecting endocycle with endosperm development
- Furthermore, Orysa;KRP1 overexpression dramatically reduced seed filling
- Connection
- KRP1, PHYB~OsphyB, Phytochrome B control of total leaf area and stomatal density affects drought tolerance in rice, However, phyB mutants exhibited reduced total leaf area per plant, which was probably due to a reduction in the total number of cells per leaf caused by enhanced expression of Orysa;KRP1 and Orysa;KRP4 (encoding inhibitors of cyclin-dependent kinase complex activity) in the phyB mutants
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