Progress toward a phylogenetic classification of the Polyporaceae through parsimony analysis of mitochondrial ribosomal DNA sequences

TitleProgress toward a phylogenetic classification of the Polyporaceae through parsimony analysis of mitochondrial ribosomal DNA sequences
Publication TypeJournal Article
Year of Publication1995
AuthorsHibbett DS, Donoghue MJ
JournalCanadian Journal of Botany-Revue Canadienne de Botanique
Volume73
PaginationS853 - S861
ISSN00084026
KeywordsAPHYLLOPHORALES, basidiomycetes, classification, phylogeny, PLANT SCIENCES, POLYPORACEAE, ribosomal DNA
Abstract

We used sequence data from mitochondrial small-subunit ribosomal DNA to infer phylogenetic relationships of the Polyporaceae. We examined 62 species representing 14 families of Aphyllophorales and Agaricales. Parsimony analyses of these sequences suggest that the Polyporaceae are polyphyletic. Higher order relationships are poorly resolved, but seven groups of species are generally well supported (as measured by bootstrapping) or are congruent with previous taxonomic hypotheses. Group 1 includes Polyporus s.str., seven other genera of Polyporaceae, Lentinus, and Ganoderma. Because this clade contains the type species of Polyporus, it may serve as the core for a future recircumscription of the Polyporaceae. Group 2 is morphologically and ecologically diverse, but all members have amyloid, ornamented spores (with the possible exception of Heterobasidion). This group includes Bondarzewia, Heterobasidion, Hericium, Echinodontium, Lentinellus, Auriscalpium, and Russula. Group 3 includes fi

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