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Microbial symbionts can modulate host interactions with biotic and abiotic factors. Such interactions may affect the evolutionary trajectories of both host and symbiont. Wolbachia protects Drosophila melanogaster against several viral infections and the strength of the protection varies between variants of this endosymbiont. Since Wolbachia is maternally transmitted, its fitness depends on the fitness of its host. Therefore, Wolbachia populations may be under selection when Drosophila is subjected to viral infection. Here we show that in D. melanogaster populations selected for increased survival upon infection with Drosophila C virus there is a strong selection coefficient for specific Wolbachia variants, leading to their fixation. Flies carrying these selected Wolbachia variants have higher survival and fertility upon viral infection when compared to flies with the other variants. These findings demonstrate how the interaction of a host with pathogens shapes the genetic composition of symbiont populations. Furthermore, host adaptation can result from the evolution of its symbionts, with host and symbiont functioning as a single evolutionary unit.

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ARCA - Access to Research and Communication Annals - IGC Repository  

Autor(es)

Paulo, Tânia F. -  Nolte, Viola -  Schlötterer, Christian -  Sucena, Élio -  Teixeira, Luis - 

Id.: 68605259

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveWolbachia - 

Tipo de recurso: article  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: openAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F82299%2F2011/PT
[References] info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F62964%2F2009/PT
[References] info:eu-repo/grantAgreement/FCT/3599-PPCDT/105655/PT
[References] http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1006297

Fecha de contribución: 28-ago-2017

Contacto:

Localización:
* Faria VG, Martins NE, PauloTF, Magalhães S, NolteV, Schlötte rer C, et al. (2016) Drosophila Adaptati on to Viral Infection through Defensive Symbiont Evolution. PLoS Genet 12(9): e1006297. doi:10.1371 /journal. pgen.1006297
* 10.1371/journal.pgen.1006297

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