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| Giraldo, A.; Gené, J.; Sutton, D.A.; Madrid, H.; Hoog, G.S. de; Cano, J.; Decock, C.; Crous, P.W.; Guarro, J.. |
| The circumscription of the genus Acremonium (Hypocreales) was recently reviewed on the basis of a DNA phylogenetic study. Several species were subsequently transferred to Sarocladium, but the relationships between both genera remained unresolved. Based on multilocus phylogenetic inferences combined with phenotypic data, we have revised the species concepts within Sarocladium and some genetically related species of Acremonium. As a result of these studies, six species are described as new, viz. S. bifurcatum, S. gamsii, S. hominis, S. pseudostrictum, S. subulatum and S. summerbellii. In addition, the new combinations S. implicatum and S. terricola are proposed for A. implicatum and A. terricola, respectively. Sarocladium attenuatum is confirmed as synonym... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Acremonium; Hypocreales; Phylogeny; Sarocladium; Taxonomy. |
| Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/560052 |
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| Madrid, H.; da Cunha, K.C.; Gené, J.; Dijksterhuis, J.; Cano, J.; Sutton, D.A.; Guarro, J.; Crous, P.W.. |
| The fungal genus Curvularia includes numerous plant pathogens and some emerging opportunistic pathogens of humans. In a previous study we used morphology and sequences of the nuclear ribosomal internal transcribed spacer region (ITS) and the glyceraldehyde-3-phosphate dehydrogenase (gpd) gene to identify species within a set of 99 clinical Curvularia isolates from the USA. Seventy-two isolates could be identified while the remaining 27 isolates belonged in three unclassified clades that were tentatively labelled Curvularia sp. I, II and III. In the present study, we further assess the taxonomic placement of these isolates using sequences of ITS, gpd, the large subunit rDNA, and the second largest subunit of RNA polymerase II. DNA sequence comparisons with a... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Bipolaris; Curvularia; Gpd; ITS; LSU; Phylogeny; RPB2; Systematics. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/532180 |
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| Giraldo, A.; Gené, J.; Sutton, D.A.; Madrid, H.; Cano, J.; Crous, P.W.; Guarro, J.. |
| Numerous members of Ascomycota and Basidiomycota produce only poorly differentiated arthroconidial asexual morphs in culture. These arthroconidial fungi are grouped in genera where the asexual-sexual connections and their taxonomic circumscription are poorly known. In the present study we explored the phylogenetic relationships of two of these ascomycetous genera, Arthrographis and Arthropsis. Analysis of D1/D2 sequences of all species of both genera revealed that both are polyphyletic, with species being accommodated in different orders and classes. Because genetic variability was detected among reference strains and fresh isolates resembling the genus Arthrographis, we carried out a detailed phenotypic and phylogenetic analysis based on sequence data of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Arthroconidial fungi; Arthrographis; Arthropsis; Eremomyces; Phylogeny; Taxonomy. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/531747 |
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