Fig. 6

Phylogenetic tree of the subclass Peniculia based on 18S rDNA sequences. Phylogenetic relationships of Frontonia vernalis (neotype) and Frontonia paravernalis sp. nov.: they cluster in the same clade of “F. vernalis” and F. shii. Phylogenetic position of the other Frontonia spp. in analysis is shown as well. Genus Frontonia resulted paraphyletic, forming four different clades (Clade1–4). Numbers associated to nodes represent posterior probability from Bayesian inference (BI) and bootstrap value from maximum likelyhood (ML) analyses, respectively (only values of BI > 0.80 and ML > 75% are shown). Black dots represent the highest statistical support (BI = 1.00 and ML = 100); white dots indicate non-significant statistical support (BI < 0.80 and ML < 75). Sequences obtained in the present work are in bold