CRT1 — Cicer arietinum

Summary

LOC101511865 (CaCRT1) on chickpea chromosome 4 encodes a calreticulin/calnexin family protein with calcium ion binding, sugar binding, and histidine kinase activity, and is annotated for ethene binding and C2H4 receptor activity. The gene is associated with the endoplasmic reticulum, ER lumen, and multiple other compartments including the apoplast, chloroplast stroma, and plasmodesmata. CaCRT1 is linked to diverse biological processes such as calcium ion homeostasis, ethylene-mediated signaling, seed dormancy, pollen tube development, defense response by callose deposition, and response to oomycetes. It is associated with agronomically important traits including grain size, seed yield, yield, root development, leaf senescence, stomatal resistance, and responses to temperature stress, oxidative stress, and viral disease. Studies of related genes in other species link the calreticulin family to endoplasmic reticulum stress tolerance, ethylene sensing, and resistance to turnip crinkle virus and Cucumber mosaic virus.