GRF1 — Oryza sativa Indica Group

Summary

BGIOSGA037400 (OiGRF1) on chromosome 12 of Indica rice encodes a growth-regulating factor (GRF) protein containing QLQ and WRC domains, with transcription coactivator activity, DNA-binding transcription factor activity, and ATP binding. It localises to the nucleus and is associated with gibberellin and auxin responses, tiller number, leaf angle, lamina joint development, plant architecture, chilling stress tolerance, spikelet development, and yield. The gene is linked to regulation of cell cycle, leaf morphogenesis, seed development, root meristem growth, leaf senescence, and responses to salt, deep water, and nematodes. Associations also include seed weight, water use efficiency, anthocyanin content, oxidative stress response, and pistil, anther, and floral organ development traits. Studies of related genes in other species connect the family to organ size, seed size, flowering time, and iron uptake.