Author, as appears in the article.: Giraldo, A.; Gene, J.; Sutton, D. A.; Madrid, H.; Cano, J.; Crous, P. W.; Guarro, J.;
Department: Ciències Mèdiques Bàsiques
URV's Author/s: Cano Lira, José Francisco / Gené Díaz, Josepa / Guarro Artigas, Josep
Keywords: Tubeufiaceae Taxonomy Systematics Ribosomal dna Revision Phylogeny Molecular phylogeny Keratinophilic fungi Evolution Eremomyces Ascomycota Arthropsis Arthrographis Arthroconidial fungi phylogeny eremomyces arthropsis arthrographis arthroconidial fungi
Abstract: 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 the ITS region, actin and chitin synthase genes. Based on these results, four new species are recognised, namely Arthrographis chlamydospora, A. curvata, A. globosa and A. longispora. Arthrographis chlamydospora is distinguished by its cerebriform colonies, branched conidiophores, cuboid arthroconidia and terminal or intercalary globose to subglobose chlamydospores. Arthrographis curvata produced both sexual and asexual morphs, and is characterised by navicular ascospores and dimorphic conidia, namely cylindrical arthroconidia and curved, cashew-nut-shaped conidia formed laterally on vegetative hyphae. Arthrographis globosa produced membranous colonies, but is mainly characterised by doliiform to globose arthroconidia. Arthrographis longispora also produces membranous colonies, but has poorly differentiated conidiophores and long arthroconidia. Morphological variants are described for A. kalrae and our results also revealed that Eremomyces langeronii and A. kalrae, traditionally considered the sexual and asexual morphs of the same species, are not conspecific.
Thematic Areas: Plant science Mycology Medicina ii Ecology, evolution, behavior and systematics Ciências biológicas iii Ciências biológicas i Ciências agrárias i Biotecnología Biodiversidade
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: josepa.gene@urv.cat jose.cano@urv.cat
Author identifier: 0000-0001-6195-9299 0000-0003-4495-4394
Record's date: 2024-09-07
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Persoonia. 32 102-114
APA: Giraldo, A.; Gene, J.; Sutton, D. A.; Madrid, H.; Cano, J.; Crous, P. W.; Guarro, J.; (2014). Phylogenetic circumscription of Arthrographis (Eremomycetaceae, Dothideomycetes). Persoonia, 32(), 102-114. DOI: 10.3767/003158514X680207
Entity: Universitat Rovira i Virgili
Journal publication year: 2014
Publication Type: Journal Publications
Repositori URV