GRF1 — Oryza sativa Indica Group

Summary

BGIOSGA013499 (OiGRF1) encodes a transcription coactivator with DNA-binding and ATP-binding activities, belonging to the growth-regulating factor (GRF) family characterized by QLQ and WRC domains. In indica rice, this gene is associated with plant architecture, tiller number, leaf angle, lamina joint development, and yield, as well as responses to gibberellin, auxin, strigolactone, and chilling stress. It has been connected to cell division, leaf and spikelet development, root meristem growth, seed development, leaf senescence, and salt response. The encoded protein localizes to the nucleus and is linked to reproductive meristem phase change, seed size regulation, and growth processes. Associations also include water use efficiency, anthocyanin content, oxidative stress response, and nematode resistance. Related genes in other species link the family to flowering time, organ size, seed size, and iron uptake.