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They seldom occur alone.

Pedro W Crous1, Johannes Z Groenewald2

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|October 16, 2016
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Summary
This summary is machine-generated.

The fungal genus Coleophoma is polyphyletic, with species found in both Dothideomycetes and Leotiomycetes. This study resolves its taxonomy and phylogeny using molecular and morphological data, identifying new species and genera.

Keywords:
DothidealesHelotialesMultigene phylogenySystematics

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Area of Science:

  • Fungal taxonomy and molecular phylogenetics
  • Plant pathology and mycology

Background:

  • The fungal genus Coleophoma encompasses species with diverse ecological roles, including plant pathogens, saprobes, and endophytes.
  • Coleophoma is characterized by specific morphological features but has a complex taxonomic history and unresolved phylogeny.

Purpose of the Study:

  • To resolve the taxonomy and phylogeny of the genus Coleophoma using a polyphasic approach.
  • To clarify the evolutionary relationships of Coleophoma species within fungal higher taxa.

Main Methods:

  • Incorporation of morphological, ecological, and molecular data.
  • Analysis of DNA sequences from the large subunit of nrDNA (LSU), internal transcribed spacer (ITS) region, β-tubulin (tub2), and translation elongation factor 1-alpha (tef1) genes.

Main Results:

  • Coleophoma was determined to be polyphyletic, with its species distributed across Dothideomycetes and Leotiomycetes.
  • Five new species within the Coleophoma s.str. clade (Dermateaceae, Leotiomycetes) were identified.
  • New genera, Davidhawksworthia, Pseudocamaropycnis, Briansuttonomyces, and Dimorphosporicola, were established.
  • Parafabraea was reduced to synonymy with Coleophoma.

Conclusions:

  • The study redefines the genus Coleophoma and clarifies its phylogenetic position.
  • The research highlights the importance of polyphasic approaches in fungal taxonomy.
  • Several new fungal taxa have been described, expanding our understanding of fungal diversity.