Identification and characterization of bacterial symbionts in three species of filth fly parasitoids.
FEMS Microbiol Ecol
; 93(9)2017 09 01.
Article
en En
| MEDLINE
| ID: mdl-28957585
ABSTRACT
Facultative bacterial symbionts are widespread among insects and have diverse effects on their biology. Here, we focused on bacterial symbionts of three ecologically and economically important filth flies parasitoid species-Spalangia cameroni, Spalangia endius and Muscidifurax raptor. Both Spalangia species harbored a Sodalis bacterium that is closely related to Sodalis praecaptivus (a free-living bacterium) and to Sodalis symbionts of weevils. This is the only case of Sodalis infection in the important order Hymenoptera. We also found, for the first time in this parasitoid guild, a Rickettsia infecting the two Spalangia spp., albeit in much higher prevalence in S. cameroni. Molecular and phylogenetic analyses revealed that it is closely related to Rickettsia felis and other Rickettsia species from the 'transitional' group. All three parasitoid species harbored Wolbachia. Using multi-locus sequence typing, we found that M. raptor harbors a single Wolbachia strain whereas the Spalangia spp. have multiple strains. By controlled crossings, we found that Wolbachia infection in S. endius causes incomplete cytoplasmic incompatibility and increased longevity, thereby promoting Wolbachia's spread. In contrast, no effects of Wolbachia on the reproduction and longevity of M. raptor were found. This study underscores the diversity and nature of symbiotic interactions between microbes and insects.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
3_ND
Problema de salud:
3_neglected_diseases
/
3_zoonosis
Asunto principal:
Pupa
/
Rickettsia
/
Simbiosis
/
Avispas
/
Wolbachia
/
Gorgojos
/
Enterobacteriaceae
Tipo de estudio:
Diagnostic_studies
/
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
FEMS Microbiol Ecol
Año:
2017
Tipo del documento:
Article
País de afiliación:
Israel