Significance of incongruent DNA loci in the taxonomy of wood-decaying Basidioradulum radula

Modern taxonomic studies of Agaricomycetes rely on the integrative analyses morphology, environmental data, geographic distribution, and usually several DNA loci. However, sampling selection loci for are commonly shallow. In this study, we suggest minimal numbers necessary specimens to sample analyze in order prevent inadequate decisions species groups with minor morphological genealogical differences. We sampled four unlinked nuclear gene regions (nuc rDNA ITS1-5.8S-ITS2, gh63, rpb2, tef1) revise systematics a common wood-decaying Basidioradulum radula (Hymenochaetales) an intercontinental set collected Northern Hemisphere. The analyzed violate concordance phylogenetic recognition principles, thus confirming single-species interpretation. conclude that Hyphodontia syringae is younger synonym B. radula.