CCR2 — Solanum lycopersicum

Summary

SlCCR2 (SOLYC10G081650.2) encodes a protein with carotenoid isomerase activity and redox activity, belonging to the CrtISO-like and amine oxidase domain families. It is associated with carotenoid and apocarotenoid anabolism, zeaxanthin and xanthophyll biosynthesis, phytoene anabolism, and vitamin A formation, as well as carotenoid and chlorophyll breakdown. It is linked to chloroplast membrane localization and etioplast organization. The gene has been associated with numerous agronomic traits, including fruit color, size, and weight, carotene and lycopene content, anthocyanin and chlorophyll levels, grain width and size, flower and leaf color, plant height, stem diameter, sucrose content, respiration rate, quantum yield, photochemical quenching, stomatal resistance, drought tolerance, and seed maturation. Associations with parasitic weed and petal color have also been noted. Studies of related genes in other species link the family to chlorophyll accumulation, photomorphogenesis, and prolamellar body formation.