CCD1 — Brassica oleracea var. botrytis

Summary

BoCCD1, located on chromosome 4 of cauliflower (Brassica oleracea var. botrytis), encodes a protein with 9-cis-epoxycarotenoid dioxygenase and carotenoid dioxygenase activities, and also possesses rRNA and mRNA binding properties as a structural constituent of the ribosome. This gene is associated with carotenoid, xanthophyll, and carotene breakdown, as well as abscisic acid anabolism and signaling, anther and pollen development, fruit ripening, cell death, and responses to salicylate and gibberellin. It has been linked to seed carotenoid content and degradation, and abscisic acid biosynthesis. The encoded protein localizes to the chloroplast stroma, large ribosomal subunit, cytosol, plasmalemma, plant-type vacuole, Golgi complex, and plasmodesmata. Studies of related genes in other species connect the family to herbivore resistance, β-ionone emission, and carotenoid cleavage.