@ARTICLE{TreeBASE2Ref18038, author = {Zheng Wang and Peter Johnston and Susumu Takamatsu and Joseph W. Spatafora and David S. Hibbett}, title = {Towards a phylogenetic classification of the Leotiomycetes based on rDNA data}, year = {2006}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Mycologia}, volume = {}, number = {}, pages = {}, abstract = {Phylogenetic relationships of one of the largest non-lichen forming ascomycetous groups, the Leotiomycetes, were inferred from genes encoding 3 rDNA regions (SSU+LSU+5.8S rDNA). A data set was prepared using rDNA sequences data from 108 isolates, among which 85 taxa representing 4 orders and 16 families in the Leotiomycetes were sampled. Equally weighted parsimony and Bayesian analyses were performed. Bootstrap proportion and Bayesian posterior probability under the GTR+?+I model were estimated along the branches. Based on our results, the Leotiomycetes is relatively well defined as a class, and it includes the Cyttariales, Erysiphales, Helotiales, Rhytismatales, and two families of uncertain position, Myxotrichaceae, and Pseudeurotiaceae. The placements of the Thelebolales and Ascocorticiaceae are not examined and are accepted as tentative in the Leotiomycetes. Our results agree with previous studies to remove the Geoglossaceae, including Geoglossum, Trichoglossum and Sarcoleotia, from the Leotiomycetes. Sequence data of rDNA regions are not adequate to resolve the relationships among major groups of the Leotiomycetes. Positions of the Erysiphales and Rhytismatales in the Leotiomycetes are confirmed. The Helotiales and Myxotrichaceae are paraphyletic. Close relationships among the Hemiphacidiaceae, Rutstroemiaceae and Sclerotiniaceae, among Loramycetaceae, the Northern Hemisphere Vibrisseaceae, the Dark Septate Endophyte fungus Phialocephala fortinii and Mollisia cinerea, and between species of Bulgaria and Phadidiopycnis, are strongly supported.} }

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