KC1 — Beta vulgaris subsp. vulgaris

Summary

BvKC1 (BVRB_2G043220) on sugar beet chromosome 2 encodes a protein with domains including KAT/AKT, ankyrin repeats, and an ion transport domain, and is annotated with outward rectifier potassium channel activity, potassium channel activity, and ion transporter activity. The gene is associated with regulation of membrane potential, monoatomic ion homeostasis, regulation of K+ transport, upregulation of stomatal opening, and responses to water stress, alkali soil, and salinity. It is linked to traits including yield, sucrose content, transpiration rate, water use efficiency, photosynthetic rate, root and shoot development, flowering time, and tolerance to cadmium, aluminum, and powdery mildew. The product localizes to the apical plasma membrane, vesicle, cell plate, and pollen tube tip, and is associated with regulation of exocytosis, regulation of actin depolymerization, wound healing, and programmed cell death. Studies of related genes in other species link the family to guard cell ion flux, stomatal closure, seed germination, and jasmonic acid biosynthesis.