BUS1 — Brassica napus

Summary

BnBUS1 (DARMORV10_C05P14620.1) on chromosome C05 of oilseed rape encodes a cytochrome P450 monooxygenase with multiple N-monooxygenase activities, including tryptophan, tyrosine, isoleucine, valine, and L-phenylalanine N-monooxygenase activity, as well as heme and iron binding. The gene is associated with glucosinolate, camalexin, dhurrin, and cyanogenic glycoside biosynthesis, auxin (IAA) biosynthesis, sucrose biosynthesis, and responses to herbivores and insects. It has been linked to shoot branching, apical dominance, root and shoot development, plant growth, and aliphatic glucosinolate profiles, including short- and long-chain forms. Additional associations include carotenoid biosynthesis, singlet oxygen quenching, photooxidative stress tolerance, and cell growth. The encoded protein localises to the endoplasmic reticulum and membrane. Related genes in other species are linked to aliphatic glucosinolate content and plant morphology.