NAC — Beta vulgaris subsp. vulgaris

Summary

BVRB_4G078190, designated BvNAC, encodes a NAC domain-containing transcription factor with DNA-binding and transcription activator activity, localised to the nucleus and cytosol. In sugar beet, this gene is associated with regulation of root hair elongation, leaf senescence, photomorphogenesis, hypoxia response, sucrose response, salt response, and defence against fungi, as well as cell size control, embryogenesis, and glucosinolate and secondary metabolism. Associations with root shape, petiole length, photosynthetic rate, ethylene sensitivity, leaf senescence, disease tolerance, and brassinosteroid content have been noted. Studies of related genes in other species link the family to drought tolerance, salt stress sensitivity, thermomemory, pathogen resistance, fruit ripening, and biomass, though these are not established for BvNAC itself.