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Data partitions, Bayesian analysis and phylogeny of the zygomycetous fungal family Mortierellaceae, inferred from nuclear ribosomal DNA sequences

Petkovits, Tamás ; Nagy, László G ; Hoffmann, Kerstin ; Wagner, Lysett ; Nyilasi, Ildikó ; Griebel, Thasso ; Schnabelrauch, Domenica ; Vogel, Heiko ; Voigt, Kerstin ; Vágvölgyi, Csaba ; Papp, Tamás Stajich, Jason E.

PloS one, 2011-11, Vol.6 (11), p.e27507-e27507 [Periódico revisado por pares]

United States: Public Library of Science

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Título:
Data partitions, Bayesian analysis and phylogeny of the zygomycetous fungal family Mortierellaceae, inferred from nuclear ribosomal DNA sequences
Autor: Petkovits, Tamás ; Nagy, László G ; Hoffmann, Kerstin ; Wagner, Lysett ; Nyilasi, Ildikó ; Griebel, Thasso ; Schnabelrauch, Domenica ; Vogel, Heiko ; Voigt, Kerstin ; Vágvölgyi, Csaba ; Papp, Tamás
Stajich, Jason E.
Assuntos: Aquamortierella ; Bayes Theorem ; Bayesian analysis ; Bioinformatics ; Biological evolution ; Biology ; Cell Nucleus - genetics ; Cladistic analysis ; Comparative analysis ; Data processing ; Deoxyribonucleic acid ; Dissophora ; Distributed processing ; DNA ; DNA sequencing ; DNA, Fungal - genetics ; DNA, Ribosomal - genetics ; Evolution, Molecular ; Fungi ; Fungi - classification ; Fungi - genetics ; Gene sequencing ; Genera ; Genes ; Infections ; Informatics ; Library collections ; Loci ; Markov analysis ; Mathematical models ; Mathematics ; Modicella ; Molecular biology ; Morphology ; Mortierella ; Mortierellaceae ; Mucorales ; Natural products ; Nucleotide sequence ; Nucleotide sequencing ; Partitions ; Pattern recognition ; Pharmacy ; Phylogenetics ; Phylogeny ; Proteins ; Reclassification ; Rhizopus oryzae ; Ribosomes - genetics ; Science ; Taxonomic revision ; Zygomycota
É parte de: PloS one, 2011-11, Vol.6 (11), p.e27507-e27507
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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Conceived and designed the experiments: T. Petkovits LGN KH KV CV T. Papp. Performed the experiments: T. Petkovits LGN KH LW IN KV CV T. Papp. Analyzed the data: T. Petkovits LGN KH IN TG KV CV T. Papp. Contributed reagents/materials/analysis tools: LW IN TG DS HV. Wrote the paper: T. Petkovits LGN KH KV CV T. Papp.
Descrição: Although the fungal order Mortierellales constitutes one of the largest classical groups of Zygomycota, its phylogeny is poorly understood and no modern taxonomic revision is currently available. In the present study, 90 type and reference strains were used to infer a comprehensive phylogeny of Mortierellales from the sequence data of the complete ITS region and the LSU and SSU genes with a special attention to the monophyly of the genus Mortierella. Out of 15 alternative partitioning strategies compared on the basis of Bayes factors, the one with the highest number of partitions was found optimal (with mixture models yielding the best likelihood and tree length values), implying a higher complexity of evolutionary patterns in the ribosomal genes than generally recognized. Modeling the ITS1, 5.8S, and ITS2, loci separately improved model fit significantly as compared to treating all as one and the same partition. Further, within-partition mixture models suggests that not only the SSU, LSU and ITS regions evolve under qualitatively and/or quantitatively different constraints, but that significant heterogeneity can be found within these loci also. The phylogenetic analysis indicated that the genus Mortierella is paraphyletic with respect to the genera Dissophora, Gamsiella and Lobosporangium and the resulting phylogeny contradict previous, morphology-based sectional classification of Mortierella. Based on tree structure and phenotypic traits, we recognize 12 major clades, for which we attempt to summarize phenotypic similarities. M. longicollis is closely related to the outgroup taxon Rhizopus oryzae, suggesting that it belongs to the Mucorales. Our results demonstrate that traits used in previous classifications of the Mortierellales are highly homoplastic and that the Mortierellales is in a need of a reclassification, where new, phylogenetically informative phenotypic traits should be identified, with molecular phylogenies playing a decisive role.
Editor: United States: Public Library of Science
Idioma: Inglês

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Data partitions, Bayesian analysis and phylogeny of the zygomycetous fungal family Mortierellaceae, inferred from nuclear ribosomal DNA sequences

Petkovits, Tamás ; Nagy, László G ; Hoffmann, Kerstin ; Wagner, Lysett ; Nyilasi, Ildikó ; Griebel, Thasso ; Schnabelrauch, Domenica ; Vogel, Heiko ; Voigt, Kerstin ; Vágvölgyi, Csaba ; Papp, Tamás Stajich, Jason E.

United States: Public Library of Science

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