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An overview of the higher level classification of Pucciniomycotina based on combined analyses of nuclear large and small subunit rDNA sequences
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Orientador(es)
Resumo(s)
In this study we provide a phylogenetically
based introduction to the classes and orders of Pucciniomycotina (5Urediniomycetes), 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 (5Uredinales), 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.
Descrição
Mycologia, Vol. 98, nº6
Palavras-chave
Basidiomycetes Molecular phylogenetics Parasitic fungi rDNA systematics Urediniomycetes
Contexto Educativo
Citação
Editora
The Mycological Society of America