ERF1 — Cucumis sativus

Summary

CsERF1 (CSA_3G135120) on cucumber chromosome 3 encodes an ethylene-responsive transcription factor 1B with an AP2/ERF domain, functioning as a DNA-binding transcription coactivator. It is associated with sex differentiation, trichome papilla formation and branching, ethylene and carotenoid biosynthesis, and regulation of ethylene-mediated signaling. The gene is linked to cellular responses to drought, salinity, and red and far-red light, as well as chlorophyll fluorescence and defense response upregulation. CsERF1 has been connected to numerous traits including plant height, leaf number, flowering time, photosynthetic rate, chlorophyll content, respiration rate, ethylene and auxin sensitivity, jasmonic acid content, disease tolerance, and root morphology. It localizes to the nucleus and mediator complex. Related genes in other species link the family to defense against necrotrophic pathogens, ethylene and jasmonate signaling, and drought stress response.