Autor segons l'article: Giraldo, A.; Gene, J.; Sutton, D. A.; Madrid, H.; Cano, J.; Crous, P. W.; Guarro, J.;
Departament: Ciències Mèdiques Bàsiques
Autor/s de la URV: Cano Lira, José Francisco / Gené Díaz, Josepa / Guarro Artigas, Josep
Paraules clau: Tubeufiaceae Taxonomy Systematics Ribosomal dna Revision Phylogeny Molecular phylogeny Keratinophilic fungi Evolution Eremomyces Ascomycota Arthropsis Arthrographis Arthroconidial fungi phylogeny eremomyces arthropsis arthrographis arthroconidial fungi
Resum: 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.
Àrees temàtiques: Plant science Mycology Medicina ii Ecology, evolution, behavior and systematics Ciências biológicas iii Ciências biológicas i Ciências agrárias i Biotecnología Biodiversidade
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: josepa.gene@urv.cat jose.cano@urv.cat
Identificador de l'autor: 0000-0001-6195-9299 0000-0003-4495-4394
Data d'alta del registre: 2024-09-07
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Persoonia. 32 102-114
Referència de l'ítem segons les normes 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
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2014
Tipus de publicació: Journal Publications
Repositori URV