A phylum-level phylogenetic classification of zygomycete fungi based on genome-scale data

Joseph W. Spatafora, Ying Chang, Gerald L. Benny, Katy Lazarus, Matthew E. Smith, Mary L. Berbee, Gregory Bonito, Nicolas Corradi, Igor Grigoriev, Andrii Gryganskyi, Timothy Y. James, Kerry O'Donnell, Robert Roberson, Thomas N. Taylor, Jessie Uehling, Rytas Vilgalys, Merlin M. White, Jason E. Stajich

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362 Scopus citations

Abstract

Zygomycete fungi were classified as a single phylum, Zygomycota, based on sexual reproduction by zygospores, frequent asexual reproduction by sporangia, absence of multicellular sporocarps, and production of coenocytic hyphae, all with some exceptions. Molecular phylogenies based on one or a few genes did not support themonophyly of the phylum, however, and the phylum was subsequently abandoned. Here we present phylogenetic analyses of a genome-scale data set for 46 taxa, including 25 zygomycetes and 192 proteins, and we demonstrate that zygomycetes comprise two major clades that form a paraphyletic grade. A formal phylogenetic classification is proposed herein and includes two phyla, six subphyla, four classes and 16 orders. On the basis of these results, the phyla Mucoromycota and Zoopagomycota are circumscribed. Zoopagomycota comprises Entomophtoromycotina, Kickxellomycotina and Zoopagomycotina; it constitutes the earliest diverging lineage of zygomycetes and contains species that are primarily parasites and pathogens of small animals (e.g. amoeba, insects, etc.) and other fungi, i.e. mycoparasites. Mucoromycota comprises Glomeromycotina, Mortierellomycotina, and Mucoromycotina and is sister to Dikarya. It is the more derived clade of zygomycetes and mainly consists of mycorrhizal fungi, root endophytes, and decomposers of plant material. Evolution of trophic modes, morphology, and analysis of genome-scale data are discussed.

Original languageEnglish (US)
Pages (from-to)1028-1046
Number of pages19
JournalMycologia
Volume108
Issue number5
DOIs
StatePublished - 2016

Keywords

  • Entomophthoromycotina
  • Fungi
  • Glomeromycotina
  • Kickellomycotina
  • Mortierellomycotina
  • Mucoromycota
  • Mucoromycotina
  • Paraphyly
  • Systematics
  • Zoopagomycota Zoopagomycotina

ASJC Scopus subject areas

  • Physiology
  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics
  • Plant Science
  • Cell Biology

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  • Cite this

    Spatafora, J. W., Chang, Y., Benny, G. L., Lazarus, K., Smith, M. E., Berbee, M. L., Bonito, G., Corradi, N., Grigoriev, I., Gryganskyi, A., James, T. Y., O'Donnell, K., Roberson, R., Taylor, T. N., Uehling, J., Vilgalys, R., White, M. M., & Stajich, J. E. (2016). A phylum-level phylogenetic classification of zygomycete fungi based on genome-scale data. Mycologia, 108(5), 1028-1046. https://doi.org/10.3852/16-042