Journal of Microbiology

Phylogenetic relationship of ganoderma species with the polyporaceae base don RFLP analysis of the nuclear ITS region: Park, Hong Je , Shin, Kee Sun , Yoon, Cheol Sik , Lee, Dong Hun , Bae, Kyung Sook; J. Microbiol. 1996;34(2):117-123.

Abstract: Restriction-polymorphic patterns of nuclear-ITS were examined for the genetic relationships among 12 bisidiomycetous mushrooms to Aphyllophorales and Agaricales. The taxonomic affinity of Ganoderma species with the family Polyporaceae also was examined. With 13 restriction endonucleases, 159 restriction characters were generated form the 12 species examined. UPGMA and neighbor-joining analyses separated the 12 species into two genetically distinct groups that correspond to orders (Agaricales and Aphyllophorales) where each species is included. This result indicates that there is clear genetic demarcation between Agaricales and Aphyllophorales. Dendrograms constructed by several data analyses showed that even though Ganoderma species are somewhat in intermediate taxonomic position between the Polyporaceae and families of the Agaricales, they are genetically more related to the Polyporaceae. These results are consistent with morphological characters observed in those mushrooms. However, it is premature to conclude taxonomic status Ganoderma species in the present study employing small sample size.

Phylogenetic Analysis of the Contriciacease Based on Gene Sequences of Nuclear 18S Ribosomal DNAS: Lee, Seung Shin , Jung, Hack Sung; J. Microbiol. 1997;35(4):253-258.

Abstract: The nuclear 18S ribosomal RNA genes of seven corticioid species were sequenced. These sequences were analyzed and compared with those of 24 other species of the order Aphyllophorales and phylogenetic trees were constructed using parsimonious methods. Phylogenetic analyses showed that two species among examined members of the Corticiaceae, Resinicium bicolor and Thanatephorus praticola, are located distantly from the remaining six species. The separation of R. bicolor seems to be kphylogenetically significant because it has very unique cystidia. The independent lineage of T. practicola suggests that it is also phylogenetically distinct because it has unusual features like the homobasidium producing secondary spores and the spetal ultrastructure of pore cap. Furthermore, Auriscalpium vulgare, Bondarzewia berkeleyi, and Heterobasidion annosum from different families of the Aphyllophorales proved to be closely related to the species of the Corticiaceae. They all have amyloid spores and grouped with Aleyrodiscus amorphus, which is a member of the Corticiaceae. The amyloidity of spores seems to be an improtant character throughout the order of the Aphyllophorales.

Phylogenetic Relationships of the Aphyllophorales Inferred from Sequence Analysis of Nuclear Small Subunit Ribosomal DNA: Seon Young Kim , Hack Sung Jung; J. Microbiol. 2000;38(3):122-131.

Abstract: Phylogenetic classification of the Aphyllophorales was conducted based on the analysis of nuclear small subunit ribosomal RNA gene (nuc SSU rDNA) sequences. Based on phylogenetic groupings and taxonomic characters, 16 families were recognized and discussed. Although many of the characters had more or less homoplasies, microscopic characters such as the mitic system and clamp, spore amyloidity and rot type appeared to be important in the classification of the Aphyllophorales. Phylogenetically significant families were newly defined to improve the classification of the order Aphyllophorales.

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