NPR1 — Cucumis melo

Summary

MELO3C016187.2 (CmNPR3) on melon chromosome 8 encodes a transcription cis-regulatory region binding protein with protein homodimerization activity and zinc binding capability, belonging to the NPR1/NIM1-like family with BTB/POZ and ankyrin repeat domains. The gene is associated with regulation of salicylic acid- and jasmonic acid-mediated signaling pathways, systemic acquired resistance, induced systemic resistance, and defense responses to bacteria, fungi, and herbivores. It has been linked to stipule, leaf, flower, and plant organ development, floral organ abscission, nodulation, and responses to symbiotic bacteria, salinity, and thirst. Localization evidence connects the product to the nucleus, cytoplasm, plasma membrane, and nuclear body. Associations with photosynthetic rate and lignin content have been noted. Studies of related genes in other species link the family to disease resistance, aphid resistance, drought tolerance, and various yield-related traits including root dry weight, chlorophyll content, and water use efficiency.