Phylogeny and nomenclature of the genus Talaromyces and taxa accommodated in Penicillium subgenus Biverticillium

Publication: Research - peer-reviewJournal article – Annual report year: 2011

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  • Author: Samson, R.A.

    CBS-KNAW Fungal Biodiversity Centre, Utrecht

  • Author: Yilmaz, N.

    CBS-KNAW Fungal Biodiversity Centre, Utrecht

  • Author: Houbraken, J.

    CBS-KNAW Fungal Biodiversity Centre, Utrecht

  • Author: Spierenburg, H.

    CBS-KNAW Fungal Biodiversity Centre, Utrecht

  • Author: Seifert, K.A.

    Agriculture & Agri-Food Canada, Eastern Cereal and Oilseed Research Centre

  • Author: Peterson, S.W.

    National Center for Agricultural Utilization Research, Illinois, Bacterial Foodborne Pathogens and Mycology Research Unit

  • Author: Varga, J.

    University of Szeged, Faculty of Science and Informatics

  • Author: Frisvad, Jens Christian

    Center for Microbial Biotechnology, Department of Systems Biology, Technical University of Denmark, Søltofts Plads, 2800, Kgs. Lyngby, Denmark

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The taxonomic history of anamorphic species attributed to Penicillium subgenus Biverticillium is reviewed, along with evidence supporting their relationship with teleomorphic species classified in Talaromyces. To supplement previous conclusions based on ITS, SSU and/or LSU sequencing that Talaromyces and subgenus Biverticillium comprise a monophyletic group that is distinct from Penicillium at the generic level, the phylogenetic relationships of these two groups with other genera of Trichocomaceae was further studied by sequencing a part of the RPB1 (RNA polymerase II largest subunit) gene. Talaromyces species and most species of Penicillium subgenus Biverticillium sensu Pitt reside in a monophyletic clade distant from species of other subgenera of Penicillium. For detailed phylogenetic analysis of species relationships, the ITS region (incl. 5.8S nrDNA) was sequenced for the available type strains and/or representative isolates of Talaromyces and related biverticillate anamorphic species. Extrolite profiles were compiled for all type strains and many supplementary cultures. All evidence supports our conclusions that Penicillium subgenus Biverticillium is distinct from other subgenera in Penicillium and should be taxonomically unified with the Talaromyces species that reside in the same clade. Following the concepts of nomenclatural priority and single name nomenclature, we transfer all accepted species of Penicillium subgenus Biverticillium to Talaromyces. A holomorphic generic diagnosis for the expanded concept of Talaromyces, including teleomorph and anamorph characters, is provided. A list of accepted Talaromyces names and newly combined Penicillium names is given. Species of biotechnological and medical importance, such as P. funiculosum and P. marneffei, are now combined in Talaromyces. Excluded species and taxa that need further taxonomic study are discussed. An appendix lists other generic names, usually considered synonyms of Penicillium sensu lato that were considered prior to our adoption of the name Talaromyces.
Original languageEnglish
JournalStudies in Mycology
Publication date2011
Volume70
Pages159-184
ISSN0166-0616
DOIs
StatePublished

Bibliographical note

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/legalcode), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

CitationsWeb of Science® Times Cited: 27

Keywords

  • DNA phylogeny, Teleomorph, Single name nomenclature, Anamorph, Trichocomaceae
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