Differential divergences of obligately insect-pathogenic Entomophthora species from fly and aphid hosts

Three DNA regions (ITS 1, LSU rRNA and GPD) of isolates from the insect-pathogenic fungus genus Entomophthora originating from different fly (Diptera) and aphid (Hemiptera) host taxa were sequenced. The results documented a large genetic diversity among the fly-pathogenic Entomophthora and only mino...

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Detalles Bibliográficos
Autores principales: Jensen, Annette Bruun, Eilenberg, Jørgen, López Lastra, Claudia Cristina
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Naturales
Diptera
Entomopathogenic fungi
Entomophthoraceae
Entomophthorales
Evolution
Hemiptera
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82716
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:Three DNA regions (ITS 1, LSU rRNA and GPD) of isolates from the insect-pathogenic fungus genus Entomophthora originating from different fly (Diptera) and aphid (Hemiptera) host taxa were sequenced. The results documented a large genetic diversity among the fly-pathogenic Entomophthora and only minor differences among aphid-pathogenic Entomophthora. The evolutionary time of divergence of the fly and the aphid host taxa included cannot account for this difference. The host-driven divergence of Entomophthora, therefore, has been much greater in flies than in aphids. Host-range differences or a recent host shift to aphid are possible explanations.

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