GS1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.4HG0337240 (HvGS1) on barley chromosome 4H encodes a glutamine synthetase (EC 6.3.1.2). The gene is associated with nitrogen utilization, photorespiration, leaf senescence and development, chlorophyll fluorescence, photosynthetic rate, grain yield, protein content, and grain filling period. It is linked to responses to salt, nitrate, cadmium, and abscisic acid, as well as to starch grain synthesis, flowering time, and stomatal opening. The product localizes to the chloroplast thylakoid membrane, stroma, and envelope, the cytosol, and the apoplast. Related genes in other species are associated with nitrogen remobilization, seed yield, root development, and tolerance to drought and salt stress.