COP1 (PSAT1G069760) — Pisum sativum

Summary

PsCOP1 (PSAT1G069760) on garden pea chromosome 1LG6 encodes a protein with a kinase domain, UBA and KA1 domains, and is annotated with ubiquitin ligase substrate adaptor, phytochrome binding, and pre-mRNA 5'-splice site binding activities. The gene is associated with regulation of phytochrome signaling, response to red or far red light, upregulation of photosynthesis, leaf formation, and brassinosteroid and cytokinin anabolism. It has been linked to traits including grain yield, chlorophyll ratio, light quality response, flower diameter, leaf area, root system morphology, plant growth hormone response, and stress responses such as spot blotch, copper sensitivity, and glyphosate sensitivity. Phenotypic associations include seed longevity, salinity tolerance, seed development, cell wall integrity, and early flowering with floral defects. Studies of related genes in other species link the family to photomorphogenesis, anthocyanin pigmentation, and pathogen defense.