RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.5HG0467840 (HvRLK) on barley chromosome 5H encodes a transmembrane receptor protein serine/threonine kinase with leucine-rich repeat domains, exhibiting histone H2AS1 kinase activity, coreceptor activity, and protein homodimerization activity. It is associated with the upregulation of seed germination, abscisic acid-mediated signaling, and innate immune response, as well as cellular response to drought, activation of salinity response, regulation of defence response to fungi, and virus-induced PTGS. The gene is linked to sporulation, somatic embryogenesis, embryo sac development, stomatal complex morphogenesis, and post-embryonic plant organ development. It localizes to the plasma membrane and extracellular regions. Studies of related genes in other species connect the family to grain yield, plant height, drought tolerance, chlorophyll content, and spikelet density.