Data from: Phylogeny of xerophilic aspergilli (subgenus Aspergillus) and taxonomic revision of section Restricti

Aspergillus section Restricti together with sister sect. Aspergillus (formerly Eurotium) comprises osmophilic species, that are able to grow on substrates with low water activity and in extreme environments. We adressed the monophyly of both sections within subgenus Aspergillus and applied a multidi...

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Hauptverfasser: Sklenář, František, Jurjević, Željko, Zalar, Polona, Frisvad, J. C., Visagie, Cobus M., Kolařík, Miroslav, Houbraken, Jos, Chen, Amanda J., Yilmaz, Neriman, Seifert, Keith A., Coton, Monica, Déniel, Franck, Gunde-Cimerman, Nina, Samson, Robert A., Peterson, Stephen W., Hubka, Vít
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creator Sklenář, František
Jurjević, Željko
Zalar, Polona
Frisvad, J. C.
Visagie, Cobus M.
Kolařík, Miroslav
Houbraken, Jos
Chen, Amanda J.
Yilmaz, Neriman
Seifert, Keith A.
Coton, Monica
Déniel, Franck
Gunde-Cimerman, Nina
Samson, Robert A.
Peterson, Stephen W.
Hubka, Vít
description Aspergillus section Restricti together with sister sect. Aspergillus (formerly Eurotium) comprises osmophilic species, that are able to grow on substrates with low water activity and in extreme environments. We adressed the monophyly of both sections within subgenus Aspergillus and applied a multidisciplinary approach for definition of species boundaries in sect. Restricti. The monophyly of sections Aspergillus and Restricti was tested on a set of 102 taxa comprising all currently accepted species and was strongly supported by Maximum likelihood (ML) and Bayesian inferrence (BI) analysis based on coding regions of β-tubulin (benA), calmodulin (caM) and RNA polymerase II second largest subunit (RPB2) loci. More than 300 strains belonging to sect. Restricti from various isolation sources and four continents were characterized by DNA sequencing, and 193 isolates selected for phylogenetic analyses and phenotypic studies. Species delimitation methods based on multispecies coalescent model were employed on DNA sequences from four loci, i.e., ID region of rDNA (ITS + LSU), caM, benA and RPB2, and supported recognition of 21 species, including 14 new. All these species were also strongly supported in ML and BI analyses. All recognized species can be reliably identified by all four examined genetic loci. Phenotype analysis was performed to support the delimitation of new species, it comprised colony characteristics on seven cultivation media incubated at several temperatures, growth on an osmotic gradient (six media with NaCl concentration from 0 to 25%) and analysis of morphology including scanning electron microscopy. The micromorphology of conidial heads, vesicle dimensions, temperature profiles and growth parameters in osmotic gradient were useful criteria for species identification.
doi_str_mv 10.5061/dryad.3t423
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C. ; Visagie, Cobus M. ; Kolařík, Miroslav ; Houbraken, Jos ; Chen, Amanda J. ; Yilmaz, Neriman ; Seifert, Keith A. ; Coton, Monica ; Déniel, Franck ; Gunde-Cimerman, Nina ; Samson, Robert A. ; Peterson, Stephen W. ; Hubka, Vít</creator><creatorcontrib>Sklenář, František ; Jurjević, Željko ; Zalar, Polona ; Frisvad, J. C. ; Visagie, Cobus M. ; Kolařík, Miroslav ; Houbraken, Jos ; Chen, Amanda J. ; Yilmaz, Neriman ; Seifert, Keith A. ; Coton, Monica ; Déniel, Franck ; Gunde-Cimerman, Nina ; Samson, Robert A. ; Peterson, Stephen W. ; Hubka, Vít</creatorcontrib><description>Aspergillus section Restricti together with sister sect. Aspergillus (formerly Eurotium) comprises osmophilic species, that are able to grow on substrates with low water activity and in extreme environments. We adressed the monophyly of both sections within subgenus Aspergillus and applied a multidisciplinary approach for definition of species boundaries in sect. Restricti. 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The monophyly of sections Aspergillus and Restricti was tested on a set of 102 taxa comprising all currently accepted species and was strongly supported by Maximum likelihood (ML) and Bayesian inferrence (BI) analysis based on coding regions of β-tubulin (benA), calmodulin (caM) and RNA polymerase II second largest subunit (RPB2) loci. More than 300 strains belonging to sect. Restricti from various isolation sources and four continents were characterized by DNA sequencing, and 193 isolates selected for phylogenetic analyses and phenotypic studies. Species delimitation methods based on multispecies coalescent model were employed on DNA sequences from four loci, i.e., ID region of rDNA (ITS + LSU), caM, benA and RPB2, and supported recognition of 21 species, including 14 new. All these species were also strongly supported in ML and BI analyses. All recognized species can be reliably identified by all four examined genetic loci. Phenotype analysis was performed to support the delimitation of new species, it comprised colony characteristics on seven cultivation media incubated at several temperatures, growth on an osmotic gradient (six media with NaCl concentration from 0 to 25%) and analysis of morphology including scanning electron microscopy. The micromorphology of conidial heads, vesicle dimensions, temperature profiles and growth parameters in osmotic gradient were useful criteria for species identification.</abstract><pub>Dryad</pub><doi>10.5061/dryad.3t423</doi><oa>free_for_read</oa></addata></record>
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identifier DOI: 10.5061/dryad.3t423
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subjects Aspergillus canadensis
Aspergillus clavatophorus
Aspergillus destruens
Aspergillus domesticus
Aspergillus glabripes
Aspergillus hordei
Aspergillus infrequens
Aspergillus magnivesiculatus
Aspergillus pachycaulis
Aspergillus penicillioides
Aspergillus pseudogracilis
Aspergillus restrictus
Aspergillus reticulatus
Aspergillus salinicola
Aspergillus tardicrescens
Aspergillus villosus
Eurotium
food spoilage
indoor fungi
Linear discriminant analysis
multigene phylogeny
multispecies coalescent model
sick building syndrome
xerophilic fungi
title Data from: Phylogeny of xerophilic aspergilli (subgenus Aspergillus) and taxonomic revision of section Restricti
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