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Chikungunya-Wolbachia interplay in Aedes albopictus.

Abstract : A severe Chikungunya (CHIK) outbreak recently hit several countries of the Indian Ocean. On La Réunion Island, Aedes albopictus was incriminated as the major vector. This mosquito species is naturally co-infected with two distinct strains of the endosymbiont Wolbachia, namely wAlbA and wAlbB, which are increasingly attracting interest as potential tools for vector control. A PCR quantitative assay was developed to investigate Wolbachia/mosquito host interactions. We show that Wolbachia densities are slightly decreased in CHIK virus (CHIKV)-infected females. We measured the impact of CHIKV replication on a lysogenic virus: WO bacteriophage. Our data indicate that WO is sheltered by wAlbB, likely at a single copy per bacteria, and that CHIKV replication is not a physiological stress triggering WO entrance into the lytic cycle.
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Submitted on : Tuesday, January 30, 2018 - 10:26:42 AM
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M Tortosa, A. Courtiol, S. Moutailler, Anna-Bella Failloux, Mylène Weill. Chikungunya-Wolbachia interplay in Aedes albopictus.. Insect Molecular Biology, Wiley, 2008, 17 (6), pp.677 - 684. ⟨10.1111/j.1365-2583.2008.00842.x⟩. ⟨pasteur-01696133⟩



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