CCR2 — Brassica napus

Summary

BnCCR2 (also known as BnCRTISO) on chromosome A09 of oilseed rape encodes a CrtISO-like protein with amine oxidase and FAD/NAD-binding domains, annotated with carotenoid isomerase activity and redox activity. The gene is associated with carotenoid breakdown and metabolism, as well as anabolism, and with etioplast organization, xylem development, flower and petal formation, and downregulation of chlorophyll anabolism. It is linked to lignin and flavonoid anabolism and localizes to the chloroplast membrane. Associations with flower, petal and leaf color, carotenoid and lignin content, and plastid development have been recorded. Related genes in other species are linked to chlorophyll accumulation, photomorphogenesis, prolamellar body formation, and altered carotene accumulation with reduced lutein and delayed greening.