RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.1HG0038620 (HvRLK) encodes a transmembrane receptor serine/threonine kinase with a legume lectin domain, exhibiting histidine kinase activity and sugar binding. This barley gene on chromosome 1H is associated with pollen aperture formation, sporulation, somatic embryogenesis, and regulation of developmental growth. It is linked to defence responses against fungi and oomycetes, immune response, cytokinin signalling, and the histidyl-aspartyl phosphorelay. Associations include response to heat, salicylate, and inhibition of salinity response, as well as virus-induced PTGS. The encoded protein localises to the plasmalemma, ER, mitochondria, nucleus, and plant-type vacuole. HvRLK is associated with stem rust, growth, and methyl jasmonate-mediated stomatal closure. Studies of related genes in other species connect the family to salt tolerance, drought tolerance, grain yield, pollen fertility, and stomatal immunity.