CAL1 — Solanum tuberosum

Summary

StCAL1 (PGSC0003DMG400002776) on potato chromosome 1 encodes a calreticulin/calnexin family protein with a ConA-like domain, annotated with histidine kinase activity, ethylene binding, and disulphide bond formation. The gene is associated with calcium ion homeostasis, ethylene-mediated signaling, jasmonic acid/ethylene-dependent systemic resistance, and the detection of ethylene stimulus. It is linked to ER-phagy, macroautophagy, wound healing, and the upregulation of antiviral responses. Associations with agronomic traits include yield, seed yield, fruit ripening, viral disease response, aphid response, temperature stress response, sulfur sensitivity, herbicide sensitivity, and leaf shattering. The protein localizes to the ER lumen and membrane, vacuole, apoplast, and chloroplast stroma. Studies of related genes in other species link the family to ethylene signaling, brassinosteroid signaling, and resistance to turnip crinkle virus and Cucumber mosaic virus.