RGA (OS03G0707600) — Oryza sativa Japonica

Summary

Rice gene RGA (SLR1) on chromosome 3 encodes a DELLA protein belonging to the GRAS transcription factor family, with domains including DELLA_N_sf and TF_GRAS. The protein is associated with E-box binding, gibberellin binding, phytochrome binding, and transcription corepressor binding activities. In rice, SLR1 is linked to grain yield, plant height, dwarfism, salt stress tolerance, biotic stress responses including blight, and hormone signaling pathways involving gibberellin, brassinosteroid, jasmonic acid, and salicylic acid. It has been linked to regulation of cellular response to heat, detection of light, and ethanol fermentation. The protein localizes to the nucleus, plastid, mitochondria, and plasmodesma, and is associated with the SCF complex. Studies of related genes in other species link the family to defense responses, drought tolerance, and fruit ripening.