GS1 (TRAESCS2D02G500600) — triticum aestivum

Summary

TRAESCS2D02G500600 (TaGS1) on wheat chromosome 2D encodes a glutamine synthetase (EC 6.3.1.2). The gene is associated with nitrogen metabolism, the ammonia assimilation cycle, nitrogen fixation, nitrate import, and ureide breakdown. It has been linked to grain yield per plant, grain number, grain protein content, harvest index, ear number, tiller number, flag leaf senescence, grain filling period, chlorophyll content, photosynthetic rate, stomatal resistance, heat tolerance, stripe rust response, root length, and abscisic acid sensitivity. The encoded protein is associated with chloroplast thylakoid and envelope, thylakoid, apoplast, plant-type cell wall, and plasmodesmata. Studies of related genes in other species link the family to drought, salt, and osmotic stress tolerance, grain filling, and lateral root development.