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Journal Articles Frontiers in Microbiology Year : 2020

Schistosomiasis vector snails and their microbiota display a phylosymbiosis pattern

Abstract

Planorbidae snails are the intermediate host for the trematode parasite of the Schistosoma genus which is responsible for schistosomiasis, a disease that affects both humans and cattle. The microbiota for Schistosoma has already been described as having an affect on host/parasite interactions, specifically through immunological interactions. Here we sought to characterize the microbiota composition of seven Planorbidae species and strains. Individual snail microbiota was determined using 16S rDNA amplicon sequencing. The bacterial composition was highly specific to host strain with limited inter-individual variation. In addition, it displayed complete congruence with host phylogeny, revealing a phylosymbiosis pattern. These results were confirmed in common garden, suggesting that the host highly constrains microbial composition. This study presents the first comparison of bacterial communities between several intermediate snail hosts of Schistosoma parasites, paving the way for further studies on the understanding of this tripartite interaction.
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Dates and versions

hal-02440210 , version 1 (10-03-2020)

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Camille Huot, Camille Clerissi, Benjamin Gourbal, Richard Galinier, David Duval, et al.. Schistosomiasis vector snails and their microbiota display a phylosymbiosis pattern. Frontiers in Microbiology, In press, ⟨10.3389/fmicb.2019.03092⟩. ⟨hal-02440210⟩
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