RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.7HG0648480, designated HvRLK on barley chromosome 7H, encodes a transmembrane receptor serine/threonine kinase with a legume lectin domain, possessing histidine kinase, sugar-binding, and protein homodimerization activities. The gene is associated with sporulation, pollen aperture formation, somatic embryogenesis, cytokinin and brassinosteroid-mediated signalling, and regulation of growth. It is linked to immune response, defence against fungi and oomycetes, virus-induced post-transcriptional gene silencing, and inhibition of salinity response. Localisation evidence links the product to the plasmalemma, cytosol, and pollen aperture. Additionally, HvRLK is associated with stem rust. Studies of related genes in other species connect the family to similar signalling and stress-related functions.