An overview of the higher level classification of Pucciniomycotina based on combined analyses of nuclear large and small subunit rDNA sequences

M. Catherine Aime, P. Brandon Matheny, Daniel A. Henk, Elizabeth M. Frieders, R. Henrik Nilsson, Meike Piepenbring, David J. McLaughlin, Les J. Szabo, Dominik Begerow, José Paulo Sampaio, Robert Bauer, Michael Weiß, Franz Oberwinkler, David Hibbett

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126 Scopus citations

Abstract

In this study we provide a phylogenetically based introduction to the classes and orders of Pucciniomycotina (=Urediniomycetes), one of three subphyla of Basidiomycota. More than 8000 species of Pucciniomycotina have been described including putative saprotrophs and parasites of plants, animals and fungi. The overwhelming majority of these (∼90%) belong to a single order of obligate plant pathogens, the Pucciniales (=Uredinales), or rust fungi. We have assembled a dataset of previously published and newly generated sequence data from two nuclear rDNA genes (large subunit and small subunit) including exemplars from all known major groups in order to test hypotheses about evolutionary relationships among the Pucciniomycotina. The utility of combining nuc-lsu sequences spanning the entire D1-D3 region with complete nuc-ssu sequences for resolution and support of nodes is discussed. Our study confirms Pucciniomycotina as a monophyletic group of Basidiomycota. In total our results support eight major clades ranked as classes (Agaricostilbomycetes, Atractiellomycetes, Classiculomycetes, Cryptomycocolacomycetes, Cystobasidiomycetes, Microbotryomycetes, Mixiomycetes and Pucciniomycetes) and 18 orders.

Original languageEnglish (US)
Pages (from-to)896-905
Number of pages10
JournalMycologia
Volume98
Issue number6
DOIs
StatePublished - Nov 2006

Bibliographical note

Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.

Keywords

  • Basidiomycetes
  • Molecular phylogenetics
  • Parasitic fungi
  • Urediniomycetes
  • rDNA systematics

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