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Fungi of quarantine concern for China I: Dothideomycetes

P Zhao1, P W Crous2,3,4, L W Hou1,5

  • 1State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China.

Persoonia
|September 11, 2023
PubMed

Insights

This study updates the taxonomy of 33 Chinese quarantine fungi in Dothideomycetes, introducing a new genus and providing DNA barcodes for accurate identification of these important plant pathogens.

Area of Science:

  • Mycology
  • Plant Pathology
  • Taxonomy

Background:

  • The list of Chinese quarantine fungi requires updating due to recent taxonomic changes and the need for reliable diagnostic tools.
  • Many quarantine fungi lack modern descriptions and DNA sequences, hindering accurate identification and control.

Purpose of the Study:

  • To review and update the taxonomy and nomenclature of 33 Chinese quarantine fungi within the Dothideomycetes class.
  • To provide reliable DNA barcodes and genomic data for rapid and accurate identification of these fungal pathogens.

Main Methods:

  • Phylogenetic analyses and morphological comparisons were employed to revise fungal taxonomy.
  • DNA barcoding and whole-genome sequencing were performed for key fungal species.
  • Lectotypes, epitypes, and neotypes were designated to stabilize nomenclature.

Main Results:

  • Updated nomenclature for 23 quarantine fungal species according to the single name system.
  • Introduction of a new genus, Xenosphaeropsis, and a new combination, Cophinforma tumefaciens.
  • Designation of multiple type specimens and reference strains, alongside sequencing of 17 whole fungal genomes.

Conclusions:

  • The study provides a revised taxonomic framework for Chinese quarantine fungi in Dothideomycetes.
  • Updated nomenclature and DNA resources facilitate accurate identification and management of significant plant pathogens.
  • Genomic data will support future research on fungal disease diagnostics and control strategies.
Keywords:
Chinese quarantine fungiDNA barcodesgenomesmorphologynew taxaphylogenyplant pathogenstypification

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