CCD1 — Solanum lycopersicum

Summary

SlCCD1 (SOLYC01G087260.4) on tomato chromosome 1 encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity and metal binding capacity, belonging to the Carotenoid_Oase family. The gene is associated with carotenoid, carotene and xanthophyll breakdown, apocarotenoid anabolism, the xanthophyll cycle, abscisic acid anabolism, and hormone anabolism. In tomato, SlCCD1 has been connected to fruit ripening, fruit pigmentation, volatile synthesis, C13/C14 apocarotenoid derivative production, and stress responses including cold, drought and salt tolerance, as well as pollen and pistil development. It is linked to fruit traits such as color, firmness, weight and size, and to carotenoid, anthocyanin, chlorophyll, proline and sugar content, along with abscisic acid levels, leaf relative water content, root number and plant height. The protein localises to the chloroplast stroma, cytosol, plasmalemma, Golgi complex, plant-type vacuole and plasmodesmata.