LCYE — Daucus carota subsp. sativus

Summary

DCAR_028276 (LCYE) on carrot chromosome 8 encodes a protein with lycopene epsilon cyclase, lycopene beta cyclase, capsanthin synthase, capsorubin synthase, neoxanthin synthase, intramolecular isomerase and oxidoreductase activities. The product localises to plastid, chloroplast and chromoplast membranes and mitochondria. LCYE is associated with carotenoid, beta-carotene, beta-zeacarotene, lycopene, xanthophyll, ubiquinone and abscisic acid anabolism, photosynthesis light harvesting, ABA signalling, pigment accumulation and root development. The gene is linked to root colour, lutein, carotene, lycopene and carotenoid content, photosynthetic rate, respiration rate, nonphotochemical quenching, photoprotection, stress tolerance, cold tolerance, high light tolerance, photosynthetic performance and lutein accumulation. Studies of related genes in other species connect the family to lutein biosynthesis, xanthophyll cycle efficiency, photooxidative stress resistance and UV-B-induced DNA damage.