GS1 — Oryza sativa Indica Group

Summary

BGIOSGA014182 (GS1) in indica rice encodes a glutamine synthetase (EC 6.3.1.2). The gene is associated with glutamine synthetase activity, glutamate-tRNA ligase activity, histone acetyltransferase activity, and salicylic acid binding. GS1 is linked to nitrogen utilization, nitrate assimilation, leaf senescence, response to abscisic acid, and regulation of gene expression. It localizes to the thylakoid, chloroplast envelope, apoplast, and plasmodesmata. The gene is associated with grain weight, grain length, grain yield, panicle weight, spikelet weight, protein content, photosynthetic rate, and flowering time. Studies of the related gene GS2 in this species associate the family with salt, drought, and osmotic stress tolerance.