NAC — Asparagus officinalis

Summary

AoNAC (A4U43_C09F6650) on asparagus chromosome 9 encodes a NAC domain-containing transcription factor with DNA-binding transcription activator activity, sequence-specific DNA binding, and protein homodimerization activity. It localizes to the nucleus and cytosol. This gene is associated with regulation of leaf senescence, root hair elongation, photomorphogenesis, and defence responses to fungi, as well as responses to hypoxia, salt, and sucrose. It is linked to lignin and glucosinolate metabolism, abscisic acid signalling downregulation, and cell size control. Associations with agronomic traits include leaf senescence, chlorophyll content, photosynthetic rate, respiration rate, ethylene sensitivity, root thickness, seedling growth, disease tolerance, and brassinosteroid content. Studies of related genes in other species link the family to drought tolerance, salt stress sensitivity, thermomemory, and pathogen resistance.