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Rapid and differential evolution of the venom composition of a parasitoid wasp depending on the host strain

View ORCID ProfileFanny Cavigliasso, View ORCID ProfileHugo Mathé-Hubert, Laurent Kremmer, Christian Rebuf, Jean-Luc Gatti, Thibaut Malausa, Dominique Colinet, Marylène Poirié
doi: https://doi.org/10.1101/796649
Fanny Cavigliasso
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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  • ORCID record for Fanny Cavigliasso
Hugo Mathé-Hubert
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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  • ORCID record for Hugo Mathé-Hubert
Laurent Kremmer
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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Christian Rebuf
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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Jean-Luc Gatti
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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Thibaut Malausa
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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Dominique Colinet
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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Marylène Poirié
1Université Côte d’Azur, INRA, CNRS, ISA, 06 903 Sophia Antipolis, France
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  • For correspondence: marylene.poirie@univ-cotedazur.fr
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Abstract

Parasitoid wasps rely primarily on venom to suppress the immune response and regulate the physiology of their host. Intraspecific variability of venom protein composition has been documented in some species, but its evolutionary potential is poorly understood. We performed an experimental evolution initiated with crosses of two lines of Leptopilina boulardi of different venom composition to generate variability and create new combinations of venom factors. The offspring were maintained for 10 generations on two strains of Drosophila melanogaster differing in resistance / susceptibility to the parasitoid lines. The venom composition of individuals was characterized by a semi-automatic analysis of 1D SDS-PAGE protein profiles whose accuracy was checked by Western blot analysis of well-characterized venom proteins. Results evidenced a rapid and differential evolution of the venom composition on both hosts and showed that the proteins beneficial on one host can be costly on the other. Overall, we demonstrated the capacity of rapid evolution of the venom composition in parasitoid wasps, important regulators of arthropod populations, suggesting a potential for adaptation to new hosts. Our approach also proved relevant in identifying, among the diversity of venom proteins, those possibly involved in parasitism success and whose role deserves to be deepened.

Key Contribution The venom protein composition of parasitoid wasps can evolve rapidly and differently depending on the host strain. Studying this evolution can help identify new venom proteins possibly involved in parasitism success on a given host.

Footnotes

  • ↵‡ F. C. and H. M-H. should be considered joint first author

  • ↵$ D. C. and M. P. should be considered joint last author

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY-NC-ND 4.0 International license.
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Posted October 23, 2019.
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Rapid and differential evolution of the venom composition of a parasitoid wasp depending on the host strain
Fanny Cavigliasso, Hugo Mathé-Hubert, Laurent Kremmer, Christian Rebuf, Jean-Luc Gatti, Thibaut Malausa, Dominique Colinet, Marylène Poirié
bioRxiv 796649; doi: https://doi.org/10.1101/796649
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Rapid and differential evolution of the venom composition of a parasitoid wasp depending on the host strain
Fanny Cavigliasso, Hugo Mathé-Hubert, Laurent Kremmer, Christian Rebuf, Jean-Luc Gatti, Thibaut Malausa, Dominique Colinet, Marylène Poirié
bioRxiv 796649; doi: https://doi.org/10.1101/796649

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