WRKY70 — Brassica napus

Summary

BnWRKY70 (DARMORV10_A09P49340.1) on chromosome A09 of oilseed rape encodes a WRKY transcription factor containing a conserved WRKY DNA-binding domain. The protein localises to both the nucleus and cytoplasm and is associated with sequence-specific DNA-binding transcription factor activity, promoter-specific chromatin binding, and other DNA and protein binding functions. BnWRKY70 is associated with defence responses, including regulation of salicylic acid-mediated signalling, defence against nematodes and insects, and inhibition of bacterial defence responses. It is linked to leaf senescence, floral organ senescence, osmotic stress response, water deprivation response, and brassinosteroid and ethylene signalling. The gene has been connected to photosynthetic rate, high temperature stress, salt tolerance, submergence tolerance, plant growth, biomass, root elongation, and resistance to Botrytis and other pathogens. Related genes in other species link the WRKY70 family to resistance to necrotrophic pathogens, osmotic stress tolerance, and heat and drought tolerance.