CCD7 — Pisum sativum

Summary

PsCCD7 (PSAT3G158440) on chromosome 3LG5 encodes a carotenoid cleavage dioxygenase with 9-cis-beta-carotene 9',10'-cleavage oxygenase activity. The protein localises to the chloroplast thylakoid membrane and stroma. This gene is associated with strigolactone and abscisic acid anabolism, carotene and xanthophyll breakdown, auxin transport and auxin polar transport, secondary shoot formation, anther and pollen development, fruit ripening, and responses to herbicides, salicylate and gibberellin. Phenotypic associations include axillary and shoot branching, lateral root development, leaf senescence, somatic embryogenesis, shoot regeneration, flowering time, root system architecture, and nitrogen deficiency response. Studies of related genes in other species link the family to strigolactone biosynthesis, vascular tissue development, increased inflorescence number, bushy appearance with increased branching, reduced plant height, and altered IAA and ABA levels.