RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.3HG0235760, designated HvRLK on barley chromosome 3H, encodes a transmembrane receptor protein 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 and development, defense responses to bacteria, oomycetes, and heat, as well as brassinosteroid-mediated signalling, cytokinin signalling, virus-induced PTGS, and inhibition of the salinity response. It localises to the pollen aperture, cytosol, and plasmalemma. HvRLK has been associated with stem rust. Studies of related genes in other species link the broader L-type lectin receptor kinase family to immune signalling and stress responses.