All oah gene expression values are represented normalized to the housekeeping gene, actin. Error bars on both graphs represent the standard error among 3 biological replicates. Asterisks represent values that are significantly different using a split plot factorial repeated measures analysis. A. The first trial included the necrotrophic generalists, Botrytis cinerea and Sclerotinia sclerotiorum, a host specialist of unknown trophic type, S. glacialis, and the biotrophic specialists, Myriosclerotinia scirpicola and Myriosclerotinia duriaeana. B. The second trial included the necrotrophic generalists, Botrytis cinerea and Sclerotinia sclerotiorum, the necrotrophic specialists, B. tulipae, Monilinia fructicola, and Monilinia aucupariae, and the biotrophic specialist, Myriosclerotinia curreyana.