GS1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0202350 (symbol GS1, also known as GS2) on barley chromosome 2H encodes a glutamine synthetase enzyme (EC 6.3.1.2) with a Gln_synt_N domain. In barley, this gene is associated with nitrogen utilization, nitrate assimilation, photorespiration, and amino acid biosynthesis, as well as with leaf development, leaf senescence, chlorophyll fluorescence, and responses to salt, cadmium, and nitrate. It has been linked to grain yield, grain filling period, protein content, starch grain synthesis, photosynthetic rate, stomatal opening, and flowering time. Related genes in other species are associated with grain nitrogen content, seedling vigour, flag leaf senescence, drought and salt stress tolerance, and root development.