NAC — Daucus carota subsp. sativus

Summary

DCAR_016661, designated DcNAC, encodes a NAC domain-containing protein with DNA-binding transcription activator activity, localised to the nucleus and cytosol. In carrot, DcNAC is associated with the regulation of root hair elongation, leaf senescence, anther development, photomorphogenesis, and responses to hypoxia, sucrose, and fungal defence. It is linked to traits including brassinosteroid content, ethylene sensitivity, photosynthetic and respiration rates, seedling growth, root thickness, leaf senescence, and disease tolerance. Studies of related genes in other species connect the NAC family to drought tolerance, salt stress sensitivity, pathogen resistance, thermomemory, and abscisic acid and jasmonic acid signalling. Sequence similarity further links DcNAC to traits such as root shape, carotene content, fruit ripening, and plant width in other species.