NCED2 — Lactuca sativa

Summary

LsNCED2 (LSAT_V11C700353800) on lettuce chromosome 7 encodes a carotenoid dioxygenase with 9-cis-epoxycarotenoid dioxygenase activity and metal binding, placing it in the Carotenoid_Oase family. The gene is associated with abscisic acid biosynthesis and signaling, carotene breakdown, and the anabolism of beta-carotene, xanthophyll, and lycopene. It is linked to seed dormancy and germination, fruit ripening, anther and pollen development, and responses to salicylate, gibberellin, auxin, and thirst. The product localizes to the thylakoid, chloroplast thylakoid membrane, and chloroplast stroma. Associations include seed maturation, photosynthetic rate, plant height, salt tolerance, leaf senescence, high light stress tolerance, drought tolerance, resistance to Botrytis cinerea, stomatal closure, and vegetative growth. Studies of related genes in other species connect the family to tuber dormancy, lateral root development, and boron toxicity tolerance.