Analysis of genetic variability within the genus Petromyces |
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Authors: | János Varga Beáta Tóth Éva Kevei Andrea Palágyi Zofia Kozakiewicz |
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Institution: | (1) Department of Microbiology, Attila József University, P.O.Box 533, H-6701 Szeged, Hungary;(2) Department of Microbiology, Attila József University, P.O.Box 533, H-6701 Szeged, Hungary;(3) CABI Bioscience UK Centre (Egham), Bakeham Lane, Englefield Green, Egham, Surrey, TW20 9TY, UK |
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Abstract: | Phenotypic and genotypic features of three teleomorphic species, Petromyces alliaceus, P. albertensis and P. muricatus and some related anamorphic Aspergillus species were compared. The dendrogram based on carbon source utilisation data revealed a close relationship between P. muricatus and the A. ochraceus strains examined. P. alliaceus and P. albertensis strains were very closely related to each other. A dendrogram with similar topology was obtained by analysing sequences of the intergenic transcribed spacer regions of representatives of these species. P. alliaceus and P. albertensis strains could only be distinguished by the random amplified polymorphic DNA technique. These strains possibly represent a single species closely related to Aspergillus section Flavi, while the anamorph of P. muricatus is a member of Aspergillus section Circumdati. Our results indicate that Aspergillus section Circumdati is in need of taxonomic revision. |
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Keywords: | Aspergillus Carbon source utilisation ITS region Petromyces Phylogenetic analysis |
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