GS1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0168790 (GS1, HvGS1) on barley chromosome 2H 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. It is linked to salt stress response and salinity response in barley, and to grain filling period, protein content, and grain yield. The encoded protein localizes to the cytosol, mitochondria, and plasmalemma. Studies of related genes in other species connect the family to desiccation tolerance, osmotic stress tolerance, and oxidative stress tolerance, while sequence similarity links in rice and wheat associate the family with grain weight, grain number, spikelet number, grain protein content, and flag leaf senescence.