CCD1 — Lactuca sativa

Summary

LsCCD1 (CCD1) on chromosome 6 of garden lettuce encodes a protein with a Carotenoid_Oase domain, 9-cis-epoxycarotenoid dioxygenase activity, carotenoid dioxygenase activity, and metal binding. The gene is associated with carotene breakdown, as well as beta-carotene, xanthophyll, lycopene, and abscisic acid anabolism. It is also linked to anther and pollen development, fruit ripening, and responses to insects, salicylate, gibberellin, auxin, abscisic acid, thirst, and salinity. The product localises to the chloroplast stroma. Studies of related genes in other species link the CCD1 family to abscisic acid and carotenoid content, fruit weight, chlorophyll content, drought tolerance, and salt tolerance.