NAC — Lactuca sativa

Summary

LsNAC (LSAT_V11C600310420) on chromosome 6 of garden lettuce encodes a NAC domain-containing transcription activator with DNA-binding and transcription factor activity. The gene is associated with regulation of leaf senescence, root hair elongation, abscisic acid homeostasis, photomorphogenesis, anther development, and responses to hypoxia, sucrose, salicylate, and fungi. It has been linked to traits including leaf length and senescence, plant width, root thickness, photosynthetic rate, ethylene sensitivity, disease tolerance, and brassinosteroid content. Associations also include oxidative stress response, carbon and nitrogen metabolism, abiotic stress tolerance, pathogen susceptibility, and anthocyanin biosynthesis. Studies of related genes in other species link the family to drought tolerance, ABA sensitivity, salt stress sensitivity, thermomemory, resistance to Pseudomonas syringae, and fruit ripening.