Gene Details:

• MSU gene ID: LOC_Os02g52480
• RAPdb gene ID: Os02g0762400
• Gene Symbol: KRP1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• 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.

Function-related keywords:

• leaf-development ,  seed-development ,  cell-cycle ,  leaf ,  endosperm ,  seed ,  grain

Literature:

• Phytochrome B control of total leaf area and stomatal density affects drought tolerance in rice .  DOI:  10.1007/s11103-011-9860-3 ;  PMID:  22138855
• The cyclin-dependent kinase inhibitor Orysa;KRP1 plays an important role in seed development of rice .  DOI:  10.1104/pp.106.087056 ;  PMID:  17012406

Related News:

Gene Resources:

• NCBI ID: AU075786
• UniProt accessions:

Sequences: