PR5 — Cicer arietinum

Summary

LOC101501185 (CaPR5) on chickpea chromosome 4 encodes a thaumatin-like protein belonging to the osmotin/thaumatin-like superfamily, with glucan endo-1,3-beta-D-glucosidase activity. The gene is associated with defence responses to fungi, viruses, and bacteria, as well as responses to salicylic acid, ethylene, abscisic acid, UV-B, cadmium, and salinity. It has been connected to seed germination, nodulation, regulation of anthocyanin metabolism, and DNA amplification. The protein localises to the apoplast, plant-type cell wall, secretory vesicle, plant-type vacuole, mitochondria, and extracellular space. CaPR5 is linked to traits including drought tolerance, salt tolerance, insect resistance, resistance to Verticillium dahliae and Pseudomonas syringae, systemic acquired resistance, and self-incompatibility. Studies of related genes in other species connect the family to disease resistance, induced systemic resistance, nematode resistance, herbivore defence, seed germination under salt stress, and cell wall integrity.