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Establishment of the Bacterial Microbiota in a Lab-Reared Model Teleost Fish, the Medaka Oryzias latipes

Abstract : Oryzias latipes is an important model organism for physiology, genetics, and developmental studies, and has also emerged as a relevant vertebrate model for aquatic ecotoxicology. Knowledge regarding its associated microbiota on the other hand is still scarce and limited to adults, despite the relevance of the associated microbiome to the host’s biology. This study provides the first insights into the establishment of bacterial microbiota during early developmental stages of laboratory-reared medaka using a 16S-rRNA-sequencing-based approach. Major shifts in community compositions are observed, from a Proteobacteria-dominated community in larvae and juveniles to a more phylum-diverse community towards adulthood, with no obvious difference between female and male specimens. Major bacterial taxa found in adults, including genera Cetobacterium and ZOR0006, establish progressively and are rare during early stages. Dominance shifts are comparable to those documented in another major model teleost, the zebrafish. Results from this study provide a basis for future work investigating the influence of medaka-associated bacteria during host development
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https://hal-mnhn.archives-ouvertes.fr/mnhn-03858402
Contributor : Charlotte DUVAL Connect in order to contact the contributor
Submitted on : Thursday, November 17, 2022 - 4:56:56 PM
Last modification on : Friday, November 18, 2022 - 4:00:12 AM

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Charlotte Duval, Benjamin Marie, Pierre Foucault, Sébastien Duperron. Establishment of the Bacterial Microbiota in a Lab-Reared Model Teleost Fish, the Medaka Oryzias latipes. Microorganisms, 2022, 10 (11), pp.2280. ⟨10.3390/microorganisms10112280⟩. ⟨mnhn-03858402⟩

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