KC1 — Solanum tuberosum

Summary

PGSC0003DMG400021091 (KC1/KST1) on potato chromosome 2 encodes a voltage-gated potassium channel of the KAT/AKT family, possessing outward rectifier potassium channel activity, ion transporter activity, and additional annotated functions including ATPase inhibitor and calcium-dependent protein phosphatase activities. The gene is directly associated with stomatal regulation in potato. It is linked to numerous agronomically relevant traits including yield, net photosynthetic rate, transpiration rate, water use efficiency, leaf water potential, water stress response, leaf necrosis tolerance, alkali soil sensitivity, cadmium concentration, iron concentration, sucrose content, root hair length, lateral root length, root mass density, days to flowering, vegetative growth time, and responses to salinity, drought, and wounding. The gene product localizes to the plasma membrane, vesicle, cell plate, and pollen tube tip, and is associated with abscisic acid-mediated signaling, TOR signaling, action potential, and regulation of membrane potential.