WRKY24 — Brassica juncea

Summary

BJUB01G45300S (BjWRKY33, also known as WRKY24) encodes a WRKY-domain transcription factor with DNA-binding, calmodulin-binding, and protein kinase activities, and acts as a transcriptional co-regulator. In Indian mustard, it is associated with diverse biological processes including jasmonic acid and ethylene-dependent systemic resistance, salicylic acid-mediated signaling, camalexin anabolism, cellular thermotolerance, abscisic acid-mediated signalling involved in stomatal movement, positive regulation of leaf senescence and autophagy, and responses to light stimulus, carbon dioxide, and hypotonic salinity. It localizes to the nucleus, cytoplasm, mitochondria, and cell plate. The gene is linked to agronomically important traits such as drought tolerance, water use efficiency, salt tolerance, cadmium concentration and tolerance, aluminum response, disease tolerance, leaf senescence, seed growth and development, flowering time, and root morphology. Studies of related genes in other species connect the family to pathogen resistance, MAP kinase signaling, camalexin production, and stomatal immunity.