TGA1 — Brassica juncea

Summary

BJUA06G14910S, designated BjTGA1 on chromosome A06 of Indian mustard (Brassica juncea), encodes a bZIP transcription factor containing a TGA domain. The product binds salicylic acid, DNA, and proteins, and acts as a transcriptional co-regulator. BjTGA1 is associated with the regulation of systemic acquired resistance, salicylic acid- and jasmonic acid-mediated signaling, defence responses to bacteria and fungi, response to wounding, heat, hypoxia, and insects, and hypersensitive response-programmed cell death. It localises to the nucleus, cytoplasm, and nuclear body. The gene has been connected to numerous traits including disease resistance to bacterial blight, Cercospora leaf spot, stripe rust, powdery mildew, and sheath blight, as well as drought sensitivity, nitrogen and sulfur sensitivity, root development, leaf senescence, flowering, inflorescence architecture, and growth rate. Studies of related genes in other species link the family to salicylic acid-mediated immune responses, pathogen resistance, and systemic acquired acclimation.