NCED2 — Daucus carota subsp. sativus

Summary

DCAR_004826 (NCED2, also known as NCED-7, DcNCED5, DcNCED3, DcNCED2) on carrot chromosome 2 encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity and metal binding. The gene is associated with abscisic acid (ABA) biosynthesis and signaling, auxin biosynthesis, carotenoid and carotene breakdown, and anabolism of beta-carotene, xanthophyll, and lycopene. It is linked to drought response, salt tolerance, high light stress tolerance, seed dormancy and germination, leaf senescence, stomatal closure, resistance to Botrytis cinerea, and fruit ripening. Associations also include carotene content, photosynthetic rate, root length, and responses to salicylate, gibberellin, and auxin. The product localizes to the thylakoid, chloroplast thylakoid membrane, and chloroplast stroma. Studies of related genes in other species connect the family to traits including tuber dormancy, lateral root development, and boron toxicity tolerance.