2006•MycologiaRequires access
Major clades of Agaricales: a multilocus phylogenetic overview
P. Brandon Matheny, Judd M. Curtis, Valérie Hofstetter, M. Catherine Aime, Jean‐Marc Moncalvo, Zai-Wei Ge, Zhu‐Liang Yang, Jason C. Slot, Joseph F. Ammirati, Timothy J. Baroni, Neale L. Bougher, Karen W. Hughes, D. Jean Lodge, Richard W. Kerrigan, Michelle T. Seidl, Duur K. Aanen, Matthew DeNitis, Graciela Daniele, Dennis E. Desjardin, Bradley R. Kropp, Lorelei L. Norvell, Andrew D. Parker, Else C. Vellinga, Rytas Vilgalys, David S. Hibbett
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Abstract
An overview of the phylogeny of the Agaricales is presented based on a multilocus analysis of a six-gene region supermatrix. Bayesian analyses of 5611 nucleotide characters of rpb1, rpb1-intron 2, rpb2 and 18S, 25S, and 5.8S ribosomal RNA genes recovered six major clades, which are recognized informally and labeled the Agaricoid, Tricholomatoid, Marasmioid, Pluteoid, Hygrophoroid and Plicaturopsidoid clades. Each clade is discussed in terms of key morphological and ecological traits. At least 11 origins of the ectomycorrhizal habit appear to have evolved in the Agaricales, with possibly as many as nine origins in the Agaricoid plus Tricholomatoid clade alone. A family-based phylogenetic classification is sketched for the Agaricales, in which 30 families, four unplaced tribes and two informally named clades are recognized.