RGA — Oryza sativa Indica Group

Summary

BGIOSGA005001 (RGA, OiRGA) on chromosome 1 of Indica rice encodes a GRAS family transcription factor with E-box binding, gibberellin binding, phytochrome binding, and multiple photoreceptor activities, along with SUMO-specific endopeptidase and phosphorelay response regulator functions. In rice, this gene is associated with grain yield, salt stress tolerance, sheath blight, abiotic and biotic stress responses, gibberellin and brassinosteroid signaling, jasmonic acid-mediated defense, plant height, dwarfism, tillering, and flowering. It is linked to processes including calcium ion transport, response to heat, trichome morphogenesis, light detection, systemic acquired resistance, and programmed cell death. The protein localizes to the nucleus, plasmodesmata, plastid, mitochondria, and complexes such as SCF and SWI-SNF. Related genes in other species are linked to gibberellic acid responsiveness, defense, drought tolerance, seed number, fruit ripening, and shoot apical meristem maintenance.