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A taxonomic study of phlebioid fungi (Basidiomycota)
Author(s) -
Parmasto Erast,
Hallenberg Nils
Publication year - 2000
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.2000.tb00740.x
Subject(s) - polyphyly , paraphyly , biology , clade , genus , taxon , phylogenetic tree , phylogenetic nomenclature , type species , monophyly , zoology , botany , genetics , gene
The genus Phlebia has long been regarded as a polyphyletic or paraphyletic taxon, including distinct groups of more closely related species. Consequently, the delimitation of the genus has been given different interpretations and several rearrangements have been proposed by various authors. In the present study, DNA sequences (25S, rDNA) were obtained for twenty species of the genus Phlebia and a phylogenetic analysis was performed. Because of the presumably paraphyletic nature of the genus, different outgroups were used for different sets of taxa. A core group of species, including the type Ph. radiata , is well distinguished. For the delimitation of the genus, however, the wider scope of a more weakly supported clade is proposed. This clade also includes Phlebiopsis gigantea and its combination in Phlebia is reaffirmed. Two species, Ph. griseoflavescens and Ph. tristis , are distinctly separated from this clade and should be removed from the genus. Morphological characters were used in a separate phylogenetic analysis but the result did not conform with analysis from sequence data.