CBL1 — Triticum turgidum subsp. durum

Summary

TRITD1BV1G193960, designated TtCBL1 on durum wheat chromosome 1B, encodes a calcineurin B-like protein with EF-hand calcium-binding domains. The product exhibits calcium ion sensor activity, methylthioadenosine nucleosidase activity, and protein kinase regulator activity. TtCBL1 is associated with thermomorphogenesis, monoatomic ion homeostasis, regulation of potassium transport, and responses to pH, nitrogen levels, and hypotonic salinity. The gene has been connected to yield, spot blotch, leaf yellowing tolerance, water stress response, vegetative vigor, root system morphology, iron content, phosphorus response, photoperiod-sensitive flowering, submergence tolerance, and powdery mildew disease response. It localizes to the nucleotide-activated protein kinase complex, aleurone grain membrane, root hair tip, and pollen tube. Related genes in other species link the family to drought stress response, salt tolerance, grain traits, cold tolerance, potassium deficiency response, and seed oil content.