GS1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.3HG0322690 (symbol GS1) on barley chromosome 3H encodes a protein with riboflavin kinase activity, FMN adenylyltransferase activity, sugar-phosphatase activity, and sn-glycerol 3-phosphatase activity. The gene is associated with nitrogen utilization, response to nitrate, leaf senescence, seed development, root development, and glycerol anabolism. GS1 is linked to salt stress response in barley, as well as to grain filling period, grain yield, and protein content. The encoded protein localizes to the cytosol, mitochondria, and plasmalemma. Studies of related genes in other species link the GS1 family to grain weight, grain number, spikelet number, plant height, tiller number, flag leaf senescence, nitrogen recycling, and stress tolerance traits including salt, osmotic, and oxidative stress.