BZIP — Brassica oleracea var. botrytis

Summary

BoBZIP, a BZIP gene on cauliflower chromosome 2, encodes a bZIP transcription factor with DNA-binding, protein homodimerization, and transcription coactivator activities. It is associated with trichome papilla formation and branching, abscission, flower development, seed germination, and responses to red and far-red light. The gene is linked to jasmonic acid and abscisic acid signaling, defense responses to fungi, proteolysis, and osmotic response. It localizes to the nucleus and the Mediator complex. Associations include flowering time, drought tolerance, disease tolerance, root length, adventitious rootless, hypocotyl morphology, and organ identity. Phenotypic connections encompass thermomorphogenesis, cuticle permeability, sulfate assimilation, iron homeostasis, lateral root formation, plant biomass, and cell wall composition. Studies of related genes in other species link the family to drought stress response, root architecture, and resistance to viruses.