A revised family-level classification of the Polyporales (Basidiomycota)

Research output: Contribution to journalArticle

Abstract

Polyporales is strongly supported as a clade of Agaricomycetes, but the lack of a consensus higher-level classification within the group is a barrier to further taxonomic revision. We amplified nrLSU, nrITS, and rpb1 genes across the Polyporales, with a special focus on the latter. We combined the new sequences with molecular data generated during the PolyPEET project and performed Maximum Likelihood and Bayesian phylogenetic analyses. Analyses of our final 3-gene dataset (292 Polyporales taxa) provide a phylogenetic overview of the order that we translate here into a formal family-level classification. Eighteen clades are assigned a family name, including three families described as new (Cerrenaceae fam. nov., Gelatoporiaceae fam. nov., Panaceae fam. nov.) and fifteen others (Dacryobolaceae, Fomitopsidaceae, Grifolaceae, Hyphodermataceae, Incrustoporiaceae, Irpicaceae, Ischnodermataceae, Laetiporaceae, Meripilaceae, Meruliaceae, Phanerochaetaceae, Podoscyphaceae, Polyporaceae, Sparassidaceae, Steccherinaceae). Three clades are given informal names (/hypochnicium,/climacocystis and/fibroporia + amyloporia). Four taxa (Candelabrochete africana, Mycoleptodonoides vassiljevae, Auriporia aurea, and Tyromyces merulinus) cannot be assigned to a family within the Polyporales. The classification proposed here provides a framework for further taxonomic revision and will facilitate communication among applied and basic scientists. A survey of morphological, anatomical, physiological, and genetic traits confirms the plasticity of characters previously emphasized in taxonomy of Polyporales.

Details

Authors
  • Alfredo Justo
  • Otto Miettinen
  • Dimitrios Floudas
  • Beatriz Ortiz-Santana
  • Elisabet Sjökvist
  • Daniel Lindner
  • Karen Nakasone
  • Tuomo Niemelä
  • Karl Henrik Larsson
  • Leif Ryvarden
  • David S Hibbett
Organisations
External organisations
  • University of Helsinki
  • University of Oslo
  • Clark University
  • US Forest Service
  • Scotland’s Rural College
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Biological Systematics

Keywords

  • Agaricomycetes, Family-level taxonomy, Phylogeny, PolyPEET, rpb1
Original languageEnglish
Pages (from-to)798-824
Number of pages27
JournalFungal Biology
Volume121
Issue number9
Publication statusPublished - 2017 Sep 1
Publication categoryResearch
Peer-reviewedYes