KC1 — Beta vulgaris subsp. vulgaris

Summary

BvKC1 (BVRB_8G202040) on sugar beet chromosome Bvchr8_un.sca015 encodes a protein with domains including KAT/AKT, a voltage-dependent potassium channel domain, and an ion transport domain, and is annotated with outward rectifier potassium channel activity, ion transporter activity, and ATPase inhibitor activity. The gene is associated with regulation of membrane potential, potassium transport, stomatal opening, and responses to drought, salinity, and abscisic acid signaling. It is linked to traits including water use efficiency, transpiration rate, photosynthetic rate, yield, sucrose content, leaf number, root mass density, days to flowering, and tolerance to leaf necrosis, alkali soil, and water stress. Localization evidence connects the product to the plasma membrane, ion channel complex, vesicle, and cell plate. Studies of related genes in other species link the family to guard cell ion flux, stomatal closure, potassium accumulation, and seed germination.