RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0518210 (HvRLK) encodes a non-specific serine/threonine protein kinase with transmembrane receptor serine/threonine kinase activity, histidine kinase activity, and sugar binding. The protein belongs to the L-type lectin receptor kinase family, containing legume lectin and protein kinase domains. In barley, HvRLK is associated with pollen development, aperture formation, microsporogenesis, megasporogenesis, anther wall tapetum development, and rejection of self pollen. It is linked to immune responses, defense against oomycetes, response to other organisms, virus-induced PTGS, and inhibition of salinity response. The gene is also connected to cytokinin signaling, histidyl-aspartyl phosphorelay, regulation of developmental growth, sporulation, and response to heat. Localized to the membrane, plasmalemma, cytosol, and pollen aperture, HvRLK has been associated with stem rust. Studies of related genes in other species link the family to additional kinase functions.