Numerous studies have described the selective expression of PR-protein-encoding genes in various grapevine cultivars following infection with a wide range of pathogens, such as Botrytis cinerea, Plasmopara viticola, Erysiphe necator or Pseudomonas syringae pv pisi (Kortekamp, 2006; Chong et al., 2008; Armijo et al., 2016). The gene discussed is TMEM37; the disease is infection.