NAC — Cucumis melo

Summary

MELO3C010632.2, designated CmNAC, encodes a NAC domain-containing transcription factor on melon chromosome 4. The protein localises to the nucleus and cytoplasm and exhibits DNA-binding transcription activator activity, protein homodimerization activity, and histidine kinase binding. In melon, CmNAC is associated with the positive regulation of leaf senescence, abscission, anther development, root hair elongation, dedifferentiation, and responses to hypoxia and sucrose. It is also linked to lignin and glucosinolate metabolism, calcium signalling, and downregulation of abscisic acid-mediated signalling. Associations with agronomic traits include fruit shape, carpel number, photosynthetic rate, respiration rate, ethylene sensitivity, lignin content, seedling growth, root thickness, and disease tolerance. Studies of related genes in other species link the family to drought tolerance, thermomemory, and pathogen resistance.