NAC — Lactuca sativa

Summary

LsNAC (LSAT_V11C300139340) on lettuce chromosome 3 encodes a NAC domain-containing protein with DNA-binding transcription activator activity, protein homodimerization activity, and histidine kinase binding. It is associated with the regulation of leaf senescence, root hair elongation, photomorphogenesis, and reproductive structure development, as well as responses to hypoxia, sucrose, salicylate, and fungi. The gene is linked to traits including leaf length, plant width, photosynthetic rate, ethylene sensitivity, disease tolerance, and brassinosteroid content. It has been connected to phenotypes such as oxidative stress response, carbon and nitrogen metabolism, anthocyanin biosynthesis, and abiotic stress tolerance. Studies of related genes in other species link the family to drought tolerance, thermomemory, pathogen susceptibility, and abscisic acid signaling, as well as fruit ripening and bacterial resistance.