RLK — Hordeum vulgare subsp. vulgare

Summary

HORVU.MOREX.R3.2HG0109070 (HvRLK) encodes a transmembrane receptor serine/threonine kinase with a legume lectin domain, exhibiting histidine kinase activity, sugar binding, and protein autophosphorylation. This barley gene on chromosome 2H is associated with pollen aperture formation, sporulation, rejection of self-pollen, and pollen development. It is linked to immune responses, including defence against fungi and oomycetes, response to salicylate, and virus-induced PTGS. Associations also include regulation of growth, somatic embryogenesis, cytokinin signalling, and inhibition of salinity response. The encoded protein localises to the pollen aperture, plasma membrane, endoplasmic reticulum, and nucleus. Studies of related genes in other species connect the family to salt tolerance, drought tolerance, grain yield, stomatal immunity, and resistance to Pseudomonas syringae.