CCD1 — Brassica oleracea var. botrytis

Summary

BoCCD1, located on chromosome 8 of cauliflower (Brassica oleracea var. botrytis), encodes a carotenoid oxygenase with 9-cis-epoxycarotenoid dioxygenase and carotenoid dioxygenase activities, and binds metal ions. The gene is associated with carotenoid, xanthophyll, and carotene breakdown, as well as lycopene, beta-carotene, xanthophyll, and abscisic acid anabolism. It has been linked to anther and pollen development, fruit ripening, cell death, ABA signaling, and responses to salicylate, gibberellin, auxin, and thirst. The encoded protein localizes to the plant-type vacuole, chloroplast stroma, plasmodesma, Golgi complex, cytosol, plasmalemma, and cytoplasm. BoCCD1 is associated with seed carotenoid content and degradation, and abscisic acid biosynthesis. Related genes in other species are linked to herbivore resistance, β-ionone emission, and carotenoid cleavage.