Gene Details:

• MSU gene ID: LOC_Os03g15880
• RAPdb gene ID: Os03g0265500
• Gene Symbol: OsCOI2
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• In contrast, assessment of growth inhibition upon exogenous application of JA to seedlings of each mutant revealed that rice COIs are redundantly involved in shoot growth, whereas OsCOI2 plays a primary role in root growth.
• The OsCOI2 mutants, but not the oscoi1a and oscoi1b mutants, exhibited severely low fertility, indicating the crucial role of OsCOI2 in rice fertility.
• Genome Editing Reveals both the Crucial Role of OsCOI2 in Jasmonate Signaling, and the Functional Diversity of COI1 Homologs in Rice Functional Diversity of COI1 Homologs in Rice.
• Transcriptomic analysis revealed that the transcriptional changes after methyl jasmonate (MeJA) treatment were moderate in the leaves of OsCOI2 mutants compared to those in the wild-type or oscoi1a and oscoi1b mutants.
• These results indicate that OsCOI2 plays a central role in JA response in rice leaves.
• MeJA-induced chlorophyll degradation and accumulation of antimicrobial secondary metabolites were suppressed in OsCOI2 mutants.
• OsCOI1b is involved in root growth and grain-size control and plays overlapping roles with OsCOI1a in spikelet development, while OsCOI2 regulates leaf senescence, male sterility, root growth, and grain size.
• OsCOI2 binds to most individual OsJAZs in the presence of endogenous JA ligands, as OsCOI1a /1b do, albeit with greater partner selectivity.
• However, the defense sectors regulated by OsCOI1a/1b and OsCOI2 clearly differed.

Function-related keywords:

• seedlings ,  root ,  growth ,  shoot ,  fertility ,  jasmonate ,  ja ,  JA ,  root-growth ,  chlorophyll ,  methyl-jasmonate ,  leaf ,  leaf-senescence ,  spikelet ,  grain ,  grain-size ,  defense ,  male-sterility ,  spikelet-development

Literature:

• Oryza sativa COI homologues restore jasmonate signal transduction in Arabidopsis coi1-1 mutants .  DOI:  10.1371/journal.pone.0052802 ;  PMID:  23320078
• Genome Editing Reveals Both the Crucial Role of OsCOI2 in Jasmonate Signaling and the Functional Diversity of COI1 Homologs in Rice .  DOI:  10.1093/pcp/pcac166 ;  PMID:  36472361
• Functional dissection of rice jasmonate receptors involved in development and defense .  DOI:  10.1111/nph.18860 ;  PMID:  36869435

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: