LCYE — Solanum tuberosum

Summary

PGSC0003DMG400000333 (LCYE) on potato chromosome 12 encodes a protein with lycopene epsilon cyclase, lycopene beta cyclase, capsanthin synthase, capsorubin synthase, neoxanthin synthase, intramolecular isomerase and oxidoreductase activities, and belongs to the lycopene cyclase b/e and FAD/NAD-binding superfamilies. The gene is associated with lutein, beta-zeacarotene, beta-carotene, carotene, xanthophyll, ubiquinone, abscisic acid, lignin and sucrose biosynthesis, photosynthesis, photoprotection, pigmentation, galactose metabolism, hormone biosynthesis, and regulation of biosynthesis. It is linked to chromoplast and chloroplast membranes, plastids and mitochondria. Associations include beta-carotene, carotene, carotenoid and chlorophyll content, photosynthetic and respiration rates, shoot fresh weight, nonphotochemical quenching, lutein biosynthesis, protochlorophyllide accumulation, xanthophyll cycle efficiency, UV-B-induced DNA damage, photosystem I accumulation, and tolerance to cold, high light, photooxidative stress and general stress. Studies of related genes in other species connect the family to lutein deficiency, high beta-carotene accumulation, and fruit, flower, leaf and root color.