AMT1 — Brassica napus

Summary

BnAMT1 (also known as BnASA1, BnWEI2, BnTRP5, BnJDL1) on chromosome A10 of oilseed rape encodes an anthranilate synthase/aminodeoxychorismate synthase enzyme with ADC synthase and chorismate-binding domains. The gene is associated with tryptophan, auxin, anthocyanin, flavonoid, and sucrose biosynthesis, as well as folate and tetrahydrofolate metabolism, nitrate import, photorespiration, glutamine metabolism, and response to ethylene, wounding, bacteria, and leaf senescence. It localises to the anthranilate synthase complex, chloroplast stroma, and cytoplasm. Traits linked to BnAMT1 include adventitious and lateral root formation, root growth inhibition, nitrate and ammonium uptake, auxin and IAA biosynthesis, alpha-methyltryptophan resistance, and sulfur nutrition response. Studies of related genes in other species connect the family to ammonium transport, primary root elongation, defense response, and phytoalexin biosynthesis.