GS2 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.6HG0620090, designated HvGS2 on barley chromosome 6H, encodes a growth-regulating factor (GRF) protein containing QLQ and WRC domains and annotated as a transcription coactivator with ATP and protein binding activities. The gene is associated with responses to deep water, salt, nitrate, and gibberellin, and with positive regulation of the cell cycle, cell population proliferation, root meristem growth, leaf senescence, seed development, and photorespiration. It localises to the nucleus. HvGS2 is linked to grain weight, grain filling period, water use efficiency, chlorophyll content, quantum yield, anthocyanin content, leaf and floral organ morphology, root oxidative activity, and oxidative stress response. Related genes in other species are linked to leaf development, cell proliferation, and chloroplast proliferation.