CCD1 — Cucumis melo

Summary

MELO3C003462.2, also known as CmCCD1 or CCD1, encodes a carotenoid oxygenase domain-containing protein with 9-cis-epoxycarotenoid dioxygenase and carotenoid dioxygenase activities, and it binds metal ions. This melon gene on chromosome 5 is associated with carotene breakdown, beta-carotene, xanthophyll, lycopene, and abscisic acid anabolism, as well as the pentose-phosphate shunt and TCA cycle. It is linked to anther and pollen development, fruit development and ripening, and responses to salicylate, gibberellin, auxin, thirst, and salinity. The encoded protein localizes to the chloroplast thylakoid membrane and stroma. Studies of related genes in other species link the CCD1 family to abscisic acid and carotenoid content, fruit weight, chlorophyll content, drought tolerance, and salt tolerance.