F5H — Brassica napus

Summary

BnF5H (DARMORV10_A01P02540.1) on chromosome A01 of oilseed rape encodes a cytochrome P450 family 84A protein with ferulate 5-hydroxylase activity, a monooxygenase that binds heme and iron. The gene is associated with lignin biosynthesis and composition, particularly syringyl lignin production, as well as phenylpropanoid metabolism, cell wall modification, and cutin, alkane, and very-long-chain fatty acid biosynthesis. It has been linked to stem strength, drought tolerance, root morphology, lateral root development, plant growth, cell-wall digestibility and saccharification efficiency, sugar release from cell walls, sinapine content, disease resistance, fruit ripening, defense responses, and response to wounding and UV-B. The encoded protein localizes to the endoplasmic reticulum and membrane. Related genes in other species connect the family to biomass yield, male sterility, and altered phenylpropanoid metabolism.