C4H — Brassica napus

Summary

BnC4H (DARMORV10_C04P59360.1) on chromosome C04 of oilseed rape encodes a cytochrome P450 enzyme with trans-cinnamate 4-monooxygenase activity and binds iron and heme. This gene is associated with phenylpropanoid, lignin, flavonoid, alkaloid, fatty acid, ubiquinone, and pigment metabolism and accumulation, as well as hormone anabolism, seed and pollen development, wound response, and post-translational modification. It is linked to seed color, lignin deposition and content, Casparian strip formation, male fertility, plant growth, lateral and adventitious root development, auxin transport, hyperhydricity, and UV-B protection. The encoded protein localizes to the endoplasmic reticulum, Golgi, plasmodesmata, plasma membrane, nucleus, vacuole, cell wall, and extracellular space. Studies of related genes in other species connect it to lignification, dwarfism, altered phenylpropanoid metabolism, male sterility, and abiotic stress adaptation.