Molecular phylogeny of asexual entomopathogenic fungi with special reference to Beauveria bassiana and Nomuraea rileyi

AbstractThe phylogenetic lineage, taxonomic affiliation and interrelationships of important asexual entomopathogenic fungal genera were studied using the sequences of partial regions of β-tubulin and rRNA genes. The species structures of Beauveria bassiana and Nomuraea rileyi were also investigated....

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Bibliographic Details
Published in:Revista iberoamericana de micología 2009-06, Vol.26 (2), p.129-145
Main Authors: Neelapu, Nageswara Rao Reddy, Reineke, Annette, Chanchala, Uma Maheswara Rao, Koduru, Uma Devi
Format: Article
Language:English
Subjects:
Análisis cladístico
Ascomycota
Basidiomycota - classification
Beauveria - classification
Beauveria - genetics
Beauveria bassiana
Cladistic analysis
Clavicipitaceae
Complejos de especies
Cryptic speciation
Especiación críptica
Evolution, Molecular
Genetic Speciation
Hongos mitospóricos
Hyphomycetes
Hypocreales
Hypocreales - classification
Hypocreales - genetics
Infectious Disease
Mitosporic fungi
Nomuraea rileyi
Phylogeny
Ribotyping
RNA, Fungal - genetics
RNA, Ribosomal - genetics
rRNA gene sequence
Secuencias de los genes ARN ribosómicos
Secuencias del gen de la β-tubulina
Species complex
Species Specificity
Tubulin - genetics
β-tubulin gene sequence
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Summary:AbstractThe phylogenetic lineage, taxonomic affiliation and interrelationships of important asexual entomopathogenic fungal genera were studied using the sequences of partial regions of β-tubulin and rRNA genes. The species structures of Beauveria bassiana and Nomuraea rileyi were also investigated. A total of 147 fungal entries covering 94 species were analysed. Phylogenetic analysis placed all the asexual entomopathogenic fungal species analysed, in the family Clavicipitaceae of the order Hypocreales of Ascomycota. Deep phylogenetic lineages were observed in B. bassiana iterating the complex nature of this species. Some of the isolates assigned to this species separated out more distinctly than morphologically distinguishable genera. Cryptic speciation was also evident in N. rileyi. It is concluded that the asexual fungi with entomopathogenic habit arose from a single lineage in sexual Clavicipitaceae.
ISSN:1130-1406
DOI:10.1016/S1130-1406(09)70024-5