COI1 — Oryza sativa Japonica

Summary

OsCOI1, located on rice chromosome 5, encodes a protein with an F-box domain and leucine-rich repeats, and is annotated with auxin receptor activity, auxin binding, IP6 binding, and DNA-binding transcription factor activity. In rice, OsCOI1 is associated with resistance to chewing insects and the brown planthopper, jasmonate signaling, defense responses, and grain size and spikelet development. It is linked to regulation of leaf morphogenesis, meristem determinacy, photomorphogenesis, and phytoalexin biosynthesis. The gene is also associated with traits including shoot elongation under submergence, plant sterility, grain yield, flowering time, and responses to temperature and light. Studies of related genes in other species link the family to jasmonate signal transduction, insect herbivory resistance, defense against necrotrophic pathogens, and trichome development.