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American Phytopathological Society, Phytopathology, 7(111), p. 1064-1079, 2021

DOI: 10.1094/phyto-08-20-0330-le



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Phylogenomic Analysis of a 55.1-kb 19-Gene Dataset Resolves a MonophyleticFusariumthat Includes theFusarium solaniSpecies Complex

Journal article published in 2021 by David M. Geiser ORCID, Abdullah M. S. Al-Hatmi ORCID, Takayuki Aoki, Tsutomu Arie, Virgilio Balmas, Irene Barnes ORCID, Gary C. Bergstrom ORCID, Madan K. Bhattacharyya, Cheryl L. Blomquist, Robert L. Bowden ORCID, Balázs Brankovics ORCID, Daren W. Brown, Lester W. Burgess, Kathryn Bushley, Mark Busman and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Scientific communication is facilitated by a data-driven, scientifically sound taxonomy that considers the end-user’s needs and established successful practice. In 2013, the Fusarium community voiced near unanimous support for a concept of Fusarium that represented a clade comprising all agriculturally and clinically important Fusarium species, including the F. solani species complex (FSSC). Subsequently, this concept was challenged in 2015 by one research group who proposed dividing the genus Fusarium into seven genera, including the FSSC described as members of the genus Neocosmospora, with subsequent justification in 2018 based on claims that the 2013 concept of Fusarium is polyphyletic. Here, we test this claim and provide a phylogeny based on exonic nucleotide sequences of 19 orthologous protein-coding genes that strongly support the monophyly of Fusarium including the FSSC. We reassert the practical and scientific argument in support of a genus Fusarium that includes the FSSC and several other basal lineages, consistent with the longstanding use of this name among plant pathologists, medical mycologists, quarantine officials, regulatory agencies, students, and researchers with a stake in its taxonomy. In recognition of this monophyly, 40 species described as genus Neocosmospora were recombined in genus Fusarium, and nine others were renamed Fusarium. Here the global Fusarium community voices strong support for the inclusion of the FSSC in Fusarium, as it remains the best scientific, nomenclatural, and practical taxonomic option available.