ALS — Brassica juncea

Summary

BJUA01G22570S (ALS3, also known as CSR1, IMR1, BjCSR1, BjALS, BjAHAS, AHAS, ALS, TZP5, BjIMR1, BjTZP5) on Indian mustard chromosome A01 encodes an acetolactate synthase, a thiamine pyrophosphate-dependent enzyme with acetolactate synthase, pyruvate decarboxylase, and 2-hydroxyacyl-CoA lyase activities. The gene is associated with branched-chain amino acid biosynthesis, valine anabolism, fatty acid alpha-oxidation, meiosis, and response to herbicide. It is linked to the acetolactate synthase complex and chloroplast stroma. Associations include heterosis, oleic acid content, photosynthetic rate, seed weight, plant height, and herbicide tolerance. Studies of related genes in other species link the family to herbicide resistance, including imidazolinone and sulfonylurea resistance, as well as enzyme stability, seed production, and plant growth.