HvHAK1 — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0164700 (HvHAK1) on barley chromosome 2H encodes a potassium transporter with potassium:sodium symporter activity, belonging to the K+_transporter family. The gene is associated with potassium ion import across the plasma membrane, regulation of stomatal opening and closure, response to salt, activation of salinity response, cellular response to carbon dioxide and absence of light, triglyceride and unsaturated fatty acid anabolism, sucrose metabolism, and regulation of ROS metabolic process. It is linked to traits including seed yield, biomass yield, leaf elongation rate, water use efficiency, transpiration rate, root hair length, root thickness, flowering time, and low temperature stress response. Studies of related genes in other species connect the family to potassium acquisition, salinity tolerance, root gravitropism, pollen development, and auxin homeostasis.