COI1 — Capsicum annuum

Summary

CaCOI1 (T459_34364) on pepper chromosome PGAv.1.6.scaffold1617 encodes coronatine-insensitive protein 1, a member of the COI1_F-box and LRR domain families. The product exhibits auxin receptor activity, auxin binding, IP6 binding, and transcription factor binding activities, and acts as a transcriptional co-regulator. CaCOI1 is associated with the lipoxygenase pathway, jasmonic acid anabolism, SCF complex assembly, defense response to insects, regulation of systemic acquired resistance, and downregulation of innate immune response. It localizes to the SCF ubiquitin ligase complex, chloroplast envelope, and condensed nuclear chromosome. The gene is linked to traits including herbivore and pathogen resistance, floral volatile production, plant growth regulation, carbon allocation, and responses to jasmonic acid, temperature stress, and photoperiod. Studies of related genes in other species connect the family to jasmonate-mediated root growth inhibition, defense against necrotrophic pathogens, trichome development, and wound response.