GS2 — Sorghum bicolor

Summary

SORBI_3010G077200 (SbGS2) encodes a growth-regulating factor (GRF) protein containing QLQ and WRC domains and is annotated as a transcription coactivator with ATP and protein binding activity. Localized to the nucleus, SbGS2 is associated with the regulation of gene expression, cell division, meristem development, root meristem growth, seed development, starch anabolism, and responses to deep water, gibberellin, and cold. The gene is linked to grain filling period, seed weight, grain yield, water use efficiency, leaf growth and morphology traits, floral organ development, anthocyanin content, and oxidative stress response. Related genes in other species connect the family to grain size, heat and cold tolerance, organ size, seed size, plant regeneration, and salt tolerance, while sequence similarity links extend associations to agronomic traits including grain number, width, length, and protein content.