Identification and taxonomy of some entomopathogenic Paecilomyces spp. (Ascomycota) isolates using rDNA-ITS Sequences

Genetics and Molecular Biology

Peter W. Inglis¹  Myrian S. Tigano¹ 

[1] ,Empresa Brasileira de Pesquisa Agropecuária Recursos Genéticos e Biotecnologia Parque Estação Biológica Brasília DF ,Brazil

关键词: Paecilomyces spp.;    phylogenetic analysis;    rDNA;    molecular taxonomy;   

DOI  :  10.1590/S1415-47572006000100025

来源: SciELO

【 摘 要 】

A phylogenetic analysis of the 5.8S rDNA and internal transcribed spacer (ITS1 and ITS2) sequences from some entomogenous Paecilomyces species supports the polyphyly of the genus and showed the existence of cryptic species. In the Eurotiales, anamorphs Paecilomyces variotii and Paecilomyces leycettanus were related to the teleomorphs Talaromyces and Thermoascus. In the Hypocreales, three major ITS subgroups were found, one of which included Paecilomyces viridis, Paecilomyces penicillatus, Paecilomyces carneus and isolates identified as Paecilomyces lilacinus and Paecilomyces marquandii. However, the majority of the P. lilacinus and P. marquandii isolates formed a distinct and distantly related subgroup, while the other major subgroup contained Paecilomyces farinosus, Paecilomyces amoeneroseus, Paecilomyces fumosoroseus and Paecilomyces tenuipes.

【 授权许可】

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