LYK3 — Medicago truncatula

Summary

MTR_8G014500, symbol LYK3 (also known as CERK1) in barrel medic (Medicago truncatula) on chromosome 8, encodes a transmembrane receptor protein kinase with serine/threonine kinase activity, chitin binding, steroid binding, and signaling receptor activity, belonging to the LysM domain-containing CERK1/LYK3-like family. The gene is associated with nitrogen fixation, response to symbiotic bacteria, response to chitin, detection of molecules of fungal origin, downregulation of defense response, endocytosis, vesicle localization, strigolactone anabolism, virus-induced PTGS, regulation of leaf senescence, flower morphogenesis, sepal giant cell differentiation, lateral root development, and plant epidermal cell differentiation. It is also linked to abscisic acid-mediated signaling and brassinosteroid stimulus detection, with localization to the plasmalemma, vacuolar lumen, and MVB membrane. Related genes in other species are linked to disease resistance, abscisic acid response, and resistance to Botrytis cinerea and Pectobacterium carotovorum.