TGA1 — Brassica juncea

Summary

BJUA02G00790S (BjTGA1) on chromosome A02 of Indian mustard encodes a protein with a TGA domain, bZIP superfamily, and bZIP domain that binds salicylic acid, DNA, and transcriptional co-regulators. 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 and hypersensitive response-programmed cell death. The gene product localises to the nucleus, cytoplasm, and nuclear bodies. BjTGA1 is associated with traits including resistance to bacterial blight, Cercospora leaf spot, wheat stripe rust, and rice sheath blight, along with drought sensitivity, nitrogen and sulfur sensitivity, relative growth rate, and stem senescence. Related genes in other species link the family to salicylic acid-mediated immune responses, pathogen resistance, and flowering.