KC1 — Daucus carota subsp. sativus

Summary

DcKC1 (DCAR_006258) on carrot chromosome 2 encodes a protein with domains including KHA, KAT/AKT, ion transport, and cyclic nucleotide-binding domains, and exhibits outward rectifier potassium channel activity, potassium transporter activity, and ion transporter 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, transpiration rate, photosynthetic rate, root mass density, leaf number, days to flowering, and responses to water stress, aluminum, cadmium, and powdery mildew. Additional associations include potassium translocation, stomatal opening, reactive oxygen species response, and programmed cell death. Studies of related genes in other species connect the family to seed germination, stomatal regulation, and fatty acid degradation during leaf senescence.