Fusarium: more than a node or a foot-shaped basal cell

0556019 - MBÚ 2022 RIV NL eng J - Článek v odborném periodiku
Crous, P. W. - Lombard, L. - Sandoval-Denis, M. - Seifert, K. - Schroers, H. - Chaverri, P. - Gené, J. - Guarro, J. - Hirooka, Y. - Bensch, K. - Kema, G. - Lamprecht, S. - Cai, L. - Rossman, A. - Stadler, M. - Summerbell, R. - Taylor, J. - Ploch, S. - Visagie, C. - Yilmaz, N. - Frisvad, J. - Abdel-Azeem, A. - Abdollahzadeh, J. - Abdolrasouli, A. - Akulov, A. - Hubka, Vít … celkem 127 autorů
Fusarium: more than a node or a foot-shaped basal cell.
Studies in Mycology. Roč. 98, March 2021 (2021), č. článku 100116. ISSN 0166-0616. E-ISSN 1872-9797
Institucionální podpora: RVO:61388971
Klíčová slova: fujikuroi species complex * desorption ionization-time * flight mass-spectrometry * delphinoides strain gpk * sudden-death syndrome * head blight pathogen * sp-nov. * fungus fusarium * nectriaceae hypocreales * structure elucidation
Obor OECD: Microbiology
Impakt faktor: 25.731, rok: 2021
Způsob publikování: Open access
https://www.sciencedirect.com/science/article/pii/S0166061621000038?via%3Dihub

Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely a very broad concept of the genus Fusarium was proposed. In doing so, however, a significant body of data that supports distinct genera in Nectriaceae based on morphology, biology, and phylogeny is disregarded. A DNA phylogeny based on 19 orthologous protein-coding genes was presented to support a very broad concept of Fusarium at the F1 node in Nectriaceae. Here, we demonstrate that re-analyses of this dataset show that all 19 genes support the F3 node that represents Fusarium sensu stricto as defined by F. sambucinum (sexual morph synonym Gibberella pulicaris). The backbone of the phylogeny is resolved by the concatenated alignment, but only six of the 19 genes fully support the F1 node, representing the broad circumscription of Fusarium. Furthermore, a re-analysis of the concatenated dataset revealed alternate topologies in different phylogenetic algorithms, highlighting the deep divergence and unresolved placement of various Nectriaceae lineages proposed as members of Fusarium. Species of Fusarium s. str. are characterised by Gibberella sexual morphs, asexual morphs with thin- or thick-walled macroconidia that have variously shaped apical and basal cells, and trichothecene mycotoxin production, which separates them from other fusarioid genera. Here we show that the Wollenweber concept of Fusarium presently accounts for 20 segregate genera with clear-cut synapomorphic traits, and that fusarioid macroconidia represent a character that has been gained or lost multiple times throughout Nectriaceae. Thus, the very broad circumscription of Fusarium is blurry and without apparent synapomorphies, and does not include all genera with fusarium-like macroconidia, which are spread throughout Nectriaceae (e.g., Cosmosporella, Macroconia, Microcera).
Trvalý link: http://hdl.handle.net/11104/0330385