NAC — Daucus carota subsp. sativus

Summary

DCAR_023696, designated DcNAC, encodes a NAC domain-containing transcription factor on carrot chromosome 7. The protein possesses DNA-binding transcription activator activity, sequence-specific DNA binding, transcription cis-regulatory region binding, protein homodimerization activity, and histidine kinase binding. DcNAC is localized to the nucleus and cytosol. It is associated with the regulation of root hair elongation, leaf senescence, photomorphogenesis, anther development, abscisic acid homeostasis, and responses to hypoxia and sucrose. The gene is linked to traits including leaf senescence, root thickness, disease tolerance, ethylene sensitivity, photosynthetic rate, brassinosteroid content, and seedling growth. Associations also connect DcNAC to oxidative stress response, abiotic stress tolerance, pathogen susceptibility, drought resistance, and carbon and nitrogen metabolism. Studies of related genes in other species link the family to drought tolerance, ABA sensitivity, salt stress sensitivity, and thermomemory.