CCD1 — Daucus carota subsp. sativus

Summary

DCAR_003120, the DcCCD1 gene on carrot chromosome 1, encodes a carotenoid oxygenase family protein with 9-cis-epoxycarotenoid dioxygenase and carotenoid dioxygenase activities, and binds metal ions. The gene is associated with carotenoid, carotene, beta-carotene, xanthophyll, lycopene and abscisic acid anabolism, as well as carotenoid breakdown. It has been linked to anther and pollen development, fruit ripening, ABA signaling, responses to salicylate, gibberellin, auxin, thirst and salinity, and nitric oxide storage. The product localises to the chloroplast stroma. DcCCD1 is linked to carotenoid content. Studies of related genes in other species connect the family to abscisic acid and chlorophyll content, fruit weight, drought tolerance and salt tolerance.