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

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

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Published inRevista iberoamericana de micología Vol. 26; no. 2; pp. 129 - 145
Main Authors Reineke, Annette, Reddy Neelapu, Nageswara Rao, Rao Chanchala, Uma Maheswara, Devi Koduru, Uma
Format Journal Article
LanguageEnglish
Published Asociación Española de Micología 2009
Asociación venezolana de micología
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Summary:The phylogenetic lineage, taxonomic affiliation and interrelationships of important asexual entomopathogenic fungal genera were studied using the sequences of partial regions of ?-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