Phylogenetic relationships of cantharelloid and clavarioid Homobasidiomycetes based on mitochondrial and nuclear rDNA sequences

TitlePhylogenetic relationships of cantharelloid and clavarioid Homobasidiomycetes based on mitochondrial and nuclear rDNA sequences
Publication TypeJournal Article
Year of Publication1999
AuthorsPine EM, Hibbett DS, Donoghue MJ
JournalMycologia
Volume91
Pagination944 - 963
ISSN00275514
KeywordsCantharellaceae, Clavariaceae, Evolution, fungi, Gomphaceae, MYCOLOGY, phylogeny, ribosomal DNA, systematics
Abstract

Sequence data from mitochondrial and nuclear small subunit rDNA were used to estimate phylogenetic relationships of cantharelloid and clavarioid Homobasidiomycetes Sixty-five diverse Homobasidiomycete species were investigated, including 23 cantharelloid and clavarioid species, Although nodes deep in the tree could not be resolved, four lineages containing cantharelloid and clavarioid fungi were identified. (i) Cantharellaceae (Cantharellus, Craterellus) is closely related to Hydnum, which is toothed, Stichoclavaria, which is a simple club, and Clavulina, which is coralloid. These taxa all have stichic nuclear division, which is a synapomorphy supporting this clade. (ii) Clavariadelphus is closely related to Gomphus and Ramaria. This relationship is supported by green reactions of sporocarps treated with iron salts, which is reflective of the presence of the compound pistillarin. The nearest relatives of these cantharelloid and clavarioid fungi are gasteromycetes, including the earth

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