TGA1 — Brassica juncea

Summary

BJUB04G53260S (BjTGA1) on chromosome B04 of Indian mustard encodes a TGA-domain and bZIP transcription factor that binds salicylic acid, DNA, and proteins, and acts as a transcriptional co-regulator. It 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, as well as upregulation of leaf development. The gene has been linked to traits including disease response to various pathogens (e.g., Cercospora leaf spot, wheat stripe rust, rice sheath blight), drought and sulfur sensitivity, root and shoot development, leaf senescence, and stomatal closure. Related genes in other species connect the family to salicylic-acid-mediated immune responses, pathogen resistance, and abiotic stress tolerance.