GS1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0485500 (GS1, HvGS1) on barley chromosome 5H 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, glycerol anabolism, leaf senescence, seed development, root development, and salt stress response. It is linked to grain filling period, grain yield, and protein content. The encoded protein localizes to the cytosol, mitochondria, and plasmalemma. Studies of related genes in Arabidopsis link the family to desiccation tolerance, osmotic stress tolerance, and salt tolerance, while sequence similarity with related genes in other species connects the family to grain weight, grain number, spikelet number, tiller number, plant height, and nitrogen recycling.