The sterile microfilamentous lichenized fungi Cystocoleus ebeneus and Racodium rupestre are relatives of plant pathogens and clinically important dothidealean fungi |
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| Authors: | Lucia Muggia Josef Hafellner Nora Wirtz David L. Hawksworth Martin Grube |
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| Affiliation: | aInstitut für Pflanzenwissenschaften, Karl-Franzens-Universität Graz, Holteigasse 6, A-8010 Graz, Austria;bThe Field Museum, 1400 South Lake Shore Drive, Chicago, IL 60605-2496, USA;cDepartamento de Biología Vegetal II, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal, Ciudad Universitaria, Madrid 28040, Spain |
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| Abstract: | The phylogenetic positions of the always-sterile microfilamentous lichens Cystocoleus ebeneus and Racodium rupestre were studied in a phylogenetic framework using sequence data of 5′ nuSSU, nuLSU, and mtSSU rDNA. The analysis reveals that both genera are ascomycetes and belong to Dothideomycetidae: they are not close to lichenized members within the subclass, but rather belong to Capnodiales. The macroscopically scarcely distinguishable C. ebeneus and R. rupestre do not form a monophyletic group. The well-supported clade of R. rupestre is basal to the one in which C. ebeneus is close to Mycosphaerellaceae. This study provides another example of ascomycetes with very different life-styles and ecologies being closely related. |
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| Keywords: | Ascomycota Black yeasts Dothideomycetidae Lifestyles Medical mycology Molecular phylogeny Mycosphaerellaceae |
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