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Environmental conditions and neutral processes shape the skin microbiome of European catfish ( Silurus glanis ) populations of Southwestern France
Author(s) -
Chiarello Marlène,
PazVinas Ivan,
Veyssière Charlotte,
Santoul Frédéric,
Loot Géraldine,
Ferriol Jessica,
Boulêtreau Stéphanie
Publication year - 2019
Publication title -
environmental microbiology reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.229
H-Index - 69
ISSN - 1758-2229
DOI - 10.1111/1758-2229.12774
Subject(s) - microbiome , catfish , biology , bacteroidetes , ecology , zoology , fish <actinopterygii> , evolutionary biology , fishery , genetics , gene , 16s ribosomal rna
Summary Teleost fishes interact with diverse microbial communities, playing crucial functions for host fitness. While gut microbiome has been extensively studied, skin microbiome has been overlooked. Specifically, there is no assessment of the relative impact of host and environmental factors on microbiome variability as well as neutral processes shaping fish skin microbiome. Here, we assessed the skin microbiome of a Siluriforme, the European catfish ( Silurus glanis ) sampled in four sites located in Southwestern France. We assessed the relative roles of individual features (body size and genetic background), local environment and neutral processes in shaping skin microbiome. Catfish skin microbiome composition was distinct to that of other freshwater fish species previously studied with high abundances of Gammaproteobacteria and Bacteroidetes . We found no effect of catfish individual genotype and body size on the structure of its associated skin microbiome. Geographical location was the best catfish skin microbiome structure predictor, together with neutral models of microbiome assembly.