RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0183930 (HvRLK) on barley chromosome 2H encodes a transmembrane receptor protein serine/threonine kinase with a legume lectin domain, exhibiting histidine kinase activity, sugar binding, and coreceptor activity. The gene is associated with immune response, defense against fungi and oomycetes, response to salicylate, and virus-induced PTGS. It is linked to pollen development and aperture formation, sporulation, somatic embryogenesis, regulation of growth and developmental growth, cytokinin signaling, and inhibition of salinity response. The encoded protein localizes to the plasmalemma, ER, nucleus, cytosol, mitochondria, plant-type vacuole, and extracellular region. HvRLK is associated with stem rust. Studies of related genes in other species link the family to salt tolerance, stomatal immunity, and ethylene homeostasis.