Whole-cell protein patterns, DNA base compositions and coenzyme Q types in the yeast genus Cryptococcus kutzing and related taxa
1994
Vancanneyt, M. | Coopman, R. | Tytgat, R. | Hennebert, G.L. | Kersters, K.
A numerical analysis was performed on one-dimensional whole-cell protein electrophoretic fingerprints of 90 strains belonging to the basidiomycetous anamorphic genus Cryptococcus and presumably related taxa in the genera Filobasidium and Tremella. A significant protein electrophoretic heterogeneity was observed within the species Cryptococcus albidus, C. humicola, C. laurentii and C. luteolus. This heterogeneity in protein profiles was confirmed by considerable variations in DNA base composition. A high similarity in protein profiles was confirmed by identical DNA base compositions and coenzyme Q types for some strains of C. albidus var. albidus and the strains studied of C. kuetzingii. Synonymy was also suggested for the type strain of C. elinovii and the strains studied of C. terreus. A close relatedness was demonstrated for one strain of C. luteolus and two strains of C. laurentii. Strains of Filobasidium floriforme and Cryptococcus ater, showing highly similar protein patterns, were characterized by an analogous range of mol% G+C content and an identical ubiquinone type. For the reference strains studied of the genus Tremella the data suggest close relationships between respectively Tremella coalescens and T. mesenterica, T. fuciformis and T. samoensis, and T. encephala and T. subanomala. There were no indications for a close phylogenetic relatedness between species of the genera Tremella and Cryptococcus.
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