FIB — Capsicum annuum

Summary

T459_05936 (symbol FIB, also known as pap1) in pepper (Capsicum annuum) on chromosome 2 encodes a PAP/fibrillin domain-containing protein. The gene product is associated with phosphoriboisomerase, starch synthase, and transglycosidase activities, as well as protein binding and enzyme modulation. It is linked to the pentose-phosphate shunt, photosynthetic electron transport, photoprotection, pigmentation, carotenoid and starch metabolism, fruit and flower development, abscission, and responses to jasmonic acid, cold, and light. The protein localizes to the chloroplast thylakoid, envelope, stroma, and stromule. Associations include fruit color, pungency, violaxanthin and anthocyanin content, starch grain shape and content, fruit weight, photosynthetic rate, shoot growth angle, chloroplast development, leaf senescence, and high-light stress tolerance. Related genes in other species link the family to photooxidative stress tolerance, anthocyanin accumulation, and plastoglobule formation.