Mostrando recursos 1 - 4 de 4

  1. Comment on Rohrscheib et al. 2016 "Intensity of mutualism breakdown is determined by temperature not amplification of Wolbachia genes"

    Chrostek, Ewa; Teixeira, Luis
    This deposit is composed by the main article plus the supplementary materials of the publication.
    - 24-sep-2017

  2. Host Adaptation Is Contingent upon the Infection Route Taken by Pathogens

    Martins, Nelson E.; Faria, Vitor G.; Teixeira, Luis; Magalhães, Sara; Sucena, Élio
    Evolution of pathogen virulence is affected by the route of infection. Also, alternate infection routes trigger different physiological responses on hosts, impinging on host adaptation and on its interaction with pathogens. Yet, how route of infection may shape adaptation to pathogens has not received much attention at the experimental level. We addressed this question through the experimental evolution of an outbred Drosophila melanogaster population infected by two different routes (oral and systemic) with Pseudomonas entomophila. The two selection regimes led to markedly different evolutionary trajectories. Adaptation to infection through one route did not protect from infection through the alternate route,...
    - 28-ago-2017

  3. Drosophila Adaptation to Viral Infection through Defensive Symbiont Evolution

    Faria, Vitor G.; Martins, Nelson E.; Magalhães, Sara; Paulo, Tânia F.; Nolte, Viola; Schlötterer, Christian; Sucena, Élio; Teixeira, Luis
    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...
    - 12-oct-2016

  4. Drosophila Adaptation to Viral Infection through Defensive Symbiont Evolution

    Paulo, Tânia F.; Nolte, Viola; Schlötterer, Christian; Sucena, Élio; Teixeira, Luis
    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...
    - 28-ago-2017

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