RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.1HG0009480 (HvRLK) on barley chromosome 1H encodes a transmembrane receptor serine/threonine kinase with a legume lectin domain, exhibiting histidine kinase activity, sugar binding, and protein homodimerization activity. The gene is associated with diverse biological processes including sporulation, pollen aperture formation, defense responses to bacteria and oomycetes, immune response, cytokinin and brassinosteroid signalling, response to heat and salicylate, and inhibition of salinity response. It is linked to stem rust and growth phenotypes. The protein localises to the plasmalemma, pollen aperture, endoplasmic reticulum, plant-type vacuole, mitochondria, cytosol, and nucleus. Studies of related genes in other species connect the family to salt tolerance, stomatal immunity, drought tolerance, grain yield, and cold tolerance.