PR3 — Cicer arietinum

Summary

CaPR3 (LOC101513497) on chickpea chromosome 5 encodes a protein with a chitin-binding domain and glycosyl hydrolase family 19 catalytic domain, and is annotated with chitinase activity and chitin binding. It is associated with cell wall macromolecule catabolic process, chitin and polysaccharide breakdown, carbohydrate metabolism, defence response to fungi, and hypersensitive response-programmed cell death. The gene is linked to jasmonic acid/ethylene-dependent systemic resistance and ethylene-mediated signalling, as well as ethylene sensitivity. Associations include wilt symptom development, nematode resistance, salt tolerance, seed germination under salt stress, and pathogen resistance. The protein localises to the protoplasm, secretory vesicles, vacuole, and extracellular space. Studies of related genes in other species link the family to disease resistance, salt response, and traits such as plant height, chlorophyll content, and root number.