NAC — Daucus carota subsp. sativus

Summary

DCAR_013176, designated DcNAC, encodes a NAC domain-containing transcription factor on carrot chromosome 4. The product possesses DNA-binding transcription activator activity, sequence-specific DNA binding, transcription cis-regulatory region binding, protein homodimerization activity, and histidine kinase binding. DcNAC is associated with regulation of root hair elongation, positive regulation of leaf senescence, anther development, response to hypoxia, response to sucrose, regulation of defence response to fungi, activation of salinity response, and downregulation of abscisic acid-mediated signalling. It is linked to traits including brassinosteroid content, ethylene sensitivity, photosynthetic rate, leaf senescence, root thickness, disease tolerance, and seedling growth. Localisation evidence places the protein in the nucleus and cytosol. Studies of related genes in other species connect the family to drought tolerance, thermomemory, pathogen susceptibility, and abscisic acid biosynthesis.