CCD4 — Lactuca sativa

Summary

LsCCD4, encoded by gene LSAT_V11C500252330 on chromosome 5 of garden lettuce (Lactuca sativa), is a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity and metal binding. It is associated with beta-carotene breakdown, carotene breakdown, beta-carotene anabolism, xanthophyll anabolism, lycopene anabolism, abscisic acid anabolism, abscisic acid metabolism, ethylene anabolism, anther development, regulation of seed germination, response to salicylate, chloroplast organization, fruit ripening, response to gibberellin, seed development, and seed germination. It localizes to the chloroplast stroma, cytosol, and nucleus. Traits connected to LsCCD4 include carotenoid content, chloroplast development trait, seed maturation, and chlorophyll content. Phenotypes linked to LsCCD4 include salt tolerance, heat sprouting, tuber morphology, leaf development, seed β-carotene content, apocarotenoid signaling, leaf senescence carotenoid turnover, seed carotenoid degradation, and chloroplast development. Studies of related genes in other species link the family to carotenoid degradation, apocarotenoid signaling, and fruit and tuber color traits.