ALS — Oryza sativa Japonica

Summary

OsALS (OS04G0389800) on rice chromosome 4 encodes an acetolactate synthase, a thiamine pyrophosphate-dependent enzyme with acetolactate synthase and pyruvate decarboxylase activities, and is part of the acetolactate synthase complex localised to the chloroplast stroma. The gene is associated with branched-chain amino acid anabolism, including valine anabolism, as well as fatty acid alpha-oxidation, microtubule assembly, non-homologous end joining, homologous recombination, and response to herbicide. It has been linked to grain yield, imidazolinone and general herbicide tolerance, and aluminium resistance. Related genes in other species are associated with herbicide resistance and sensitivity, plant growth and development traits including tillering, plant height, drought tolerance, and seed production.