KC1 — Daucus carota subsp. sativus

Summary

DcKC1 (DCAR_006695) on carrot chromosome 2 encodes a protein belonging to the KAT/AKT family, with annotated molecular functions including outward rectifier potassium channel activity, ion transporter activity, ATPase inhibitor activity, and phosphatase activity. The gene is associated with regulation of membrane potential, potassium ion homeostasis, stomatal opening, and responses to basic pH and hypotonic salinity. It has been linked to numerous agronomically relevant traits including yield, water use efficiency, photosynthetic rate, transpiration rate, root and shoot growth traits, leaf necrosis tolerance, alkali soil sensitivity, and responses to water stress, aluminum, cadmium, and insect damage. Localization evidence connects the encoded protein to the plasma membrane, pollen tube tip, cell plate, and vesicle compartments. Studies of related genes in other species link the broader channel family to stomatal regulation, ion transport, and stress tolerance.