Molecular phylogeny of Boliniales (Sordariomycetes) with an assessment of the systematics of Apiorhynchostoma, Endoxyla and Pseudovalsaria

Biology, Brandon University, Manitoba, 270-18th Street, Brandon, Manitoba, R7A 6A9, Canada.
Mycologia (Impact Factor: 2.47). 02/2013; 105(3):564-588. DOI: 10.3852/12-326
Source: PubMed

ABSTRACT The systematics of ascomycete genera Apiorhynchostoma, Endoxyla and Pseudovalsaria are re-evaluated based on the comparison of cultural characteristics, teleomorph morphology and DNA sequence data. Analyses of internal transcribed spacer (ITS) of the ribosomal DNA operon and large subunit (LSU) of the nuclear ribosomal DNA gene sequences resolve Boliniales as a robustly supported lineage comprising Apiorhynchostoma, Camarops, Camaropella, Cornipulvina, Endoxyla and Pseudovalsaria. Within Boliniales, species of Endoxyla form a strongly supported lineage. Apiorhynchostoma curreyi and Pseudovalsaria ferruginea group with Cornipulvina ellipsoides. Species of Camarops are paraphyletic and comprise two clades, one of which includes Camaropella. Boliniaceae is emended, Endoxyla mallochii is described as new and Apiorhynchostoma trabicola is considered a synonym of Apiorhynchostoma altipetum. We also propose the combinations Endoxyla occulta, Endoxylina luteobasis and Jobellisia peckii. Keys to genera included in the Boliniaceae and to species of Apiocamarops, Apiorhynchostoma and Endoxyla are provided.

1 Follower
127 Reads
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: More than 100 recent collections of Valsaria sensu lato mostly from Europe were used to elucidate the species composition within the genus. Multigene phylogeny based on SSU, LSU, ITS, rpb2 and tef1 sequences revealed a monophyletic group of ten species within the Dothideomycetes, belonging to three morphologically similar genera. This group could not be accommodated in any known family and are thus classified in the new family Valsariaceae and the new order Valsariales. The genus Valsaria sensu stricto comprises V. insitiva, V. robiniae, V. rudis, V. spartii, V. lopadostomoides sp. nov. and V. neotropica sp. nov., which are phylogenetically well-defined, but morphologically nearly indistinguishable species. The new monotypic genus Bambusaria is introduced to accommodate Valsaria bambusae. Munkovalsaria rubra and Valsaria fulvopruinata are combined in Myrmaecium, a genus traditionally treated as a synonym of Valsaria, which comprises three species, with M. rubricosum as its generic type. This work is presented as a basis for additional species to be detected in future.
    Fungal diversity 05/2015; DOI:10.1007/s13225-015-0330-0 · 6.22 Impact Factor