KC1 — Sorghum bicolor

Summary

SbKC1, a gene on sorghum chromosome 10, encodes a protein with domains including KAT/AKT, KHA_dom, and ion transport domains, and is annotated with outward rectifier potassium channel activity and ion transporter activity. It is associated with regulation of membrane potential, upregulation of stomatal opening, potassium ion membrane transport, and response to basic pH. The gene is linked to traits including leaf necrosis tolerance, water stress response, transpiration rate, days to flowering, root mass density, and sucrose content. It is also associated with phenotypes such as potassium translocation, stomatal complex closure time, and reactive oxygen species response. Related genes in other species link the family to potassium secretion into the xylem, and to drought and salt stress tolerance, growth, and grain development.