GRF1 — Sorghum bicolor

Summary

SORBI_3001G104500 (SbGRF1) on sorghum chromosome 1 encodes a growth-regulating factor (GRF) protein containing QLQ and WRC domains and is annotated with transcription coactivator activity, DNA-binding transcription factor activity, and transcription cis-regulatory region binding. SbGRF1 is associated with regulation of gene expression, meristem and root development, leaf morphogenesis and senescence, cell cycle and proliferation, response to gibberellin, deep water, and nematodes, and starch and glucosinolate metabolism. It localizes to the nucleus. The gene is linked to aphid resistance, seed weight, water use efficiency, anthocyanin content, and traits including leaf, floral organ, ovary, pistil, anther, cotyledon, and embryo development, as well as plant cell size, root oxidative activity, and stress tolerance. Related genes in other species are associated with chilling and salt stress tolerance, plant architecture, tillering, leaf angle, and yield.