Fusarium incarnatum-equiseti complex from China

2019/06/06 by M.M. Wang, Mengmeng Wang, Q. Chen +5 · 134 citations
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Biology #Botany #Evolutionary biology #Fusarium #Gene #Genetics #Internal transcribed spacer #Locus (genetics) #Mycorrhizal Fungi and Plant Interactions #Mycotoxins in Agriculture and Food #Phylogenetic tree #Phylogenetics #Plant Pathogens and Fungal Diseases #Ribosomal RNA #Species complex #Taxonomy (biology)

paper · open access · doi:10.3767/persoonia.2019.43.03

published in Persoonia - Molecular Phylogeny and Evolution of Fungi 43(1), 70-89 (National Herbarium of the Netherlands)

openalex publication_date 2019/06/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The Fusarium incarnatum-equiseti species complex (FIESC) is shown to encompass 33 phylogenetic species, across a wide range of habitats/hosts around the world. Here, 77 pathogenic and endophytic FIESC strains collected from China were studied to investigate the phylogenetic relationships within FIESC, based on a polyphasic approach combining morphological characters, multi-locus phylogeny and distribution patterns. The importance of standardised cultural methods to the identification and classification of taxa in the FIESC is highlighted. Morphological features of macroconidia, including the shape, size and septum number, were considered as diagnostic characters within the FIESC. A multi-locus dataset encompassing the 5.8S nuclear ribosomal gene with the two flanking internal transcribed spacers (ITS), translation elongation factor ( EF-1α ), calmodulin ( CAM ), partial RNA polymerase largest subunit ( RPB1 ) and partial RNA polymerase second largest subunit ( RPB2 ), was generated to distinguish species within the FIESC. Nine novel species were identified and described. The RPB2 locus is demonstrated to be a primary barcode with high success rate in amplification, and to have the best species delimitation compared to the other four tested loci.

Citations

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• Two novel Fusarium species that cause canker disease of prickly ash ( Zanthoxylum bungeanum ) in northern China form a novel clade with Fusarium torreyae
• Symptomatic Citrus trees reveal a new pathogenic lineage in Fusarium and two new Neocosmospora species
• New endemic Fusarium species hitch-hiking with pathogenic Fusarium strains causing Panama disease in small-holder banana plots in Indonesia

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