RLK — Capsicum annuum

Summary

CaRLK (T459_05450) on pepper chromosome 2 encodes a transmembrane receptor protein serine/threonine kinase with histone H2AS1 kinase activity, belonging to the PRK1-6/SRF4-like family and containing leucine-rich repeat and protein kinase domains. The gene is associated with diverse biological processes including cellular response to drought, upregulation of abscisic acid-mediated signaling, activation of salinity response, regulation of stomatal complex development and morphogenesis, floral organ development and specification, gametophyte development, post-embryonic organ development, and virus-induced PTGS. It is also linked to drought tolerance, immune response, and ABA response. The encoded protein localizes to the plasma membrane and extracellular region. Studies of related LRR-RLK family members in other species connect this gene family to traits such as root volume, shoot dry weight, fruit size, plant height, lycopene content, and abscisic acid sensitivity.