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Microbial Ecology

, Volume 76, Issue 1, pp 121–124 | Cite as

The Intestinal Microbiota of Tadpoles Differs from Those of Syntopic Aquatic Invertebrates

  • Mariana L. LyraEmail author
  • Molly C. Bletz
  • Célio F. B. Haddad
  • Miguel Vences
Notes and Short Communications

Abstract

Bacterial communities associated to eukaryotes play important roles in the physiology, development, and health of their hosts. Here, we examine the intestinal microbiota in tadpoles and aquatic invertebrates (insects and gastropods) to better understand the degree of specialization in the tadpole microbiotas. Samples were collected at the same time in one pond, and the V4 region of the bacterial 16S rRNA gene was sequenced with Illumina amplicon sequencing. We found that bacterial richness and diversity were highest in two studied snail individuals, intermediate in tadpoles, and lowest in the four groups of aquatic insects. All groups had substantial numbers of exclusive bacterial operational taxonomic units (OTUs) in their guts, but also shared a high proportion of OTUs, probably corresponding to transient environmental bacteria. Significant differences were found for all pairwise comparisons of tadpoles and snails with the major groups of insects, but not among insect groups or between snails and tadpoles. The similarity between tadpoles and snails may be related to similar feeding mode as both snails and tadpoles scratch biofilms and algae from surfaces; however, this requires confirmation due to low sample sizes. Overall, the gut microbiota differences found among syntopic aquatic animals are likely shaped by both food preferences and host identity.

Keywords

Bacterial community Gut Tadpoles Aquatic invertebrates 16S rRNA Illumina sequencing 

Notes

Acknowledgements

We are grateful to Maria J. O. Campos and Marcelo de Carvalho for access to the study site; Meike Kondermann for her invaluable help with lab work; and Sabin Bhuju, Robert Geffers, and Michael Jarek for sequencing and sequence preprocessing. We also thank Flávio Dias Passos and Michael Balke for helping with identification of invertebrates.

Funding information

Work in Brazil was supported by a grant from Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES; 88881.062205/2014-01) to MV, CFBH, and ML. CFBH thanks grant #2013/50741-7, São Paulo Research Foundation (FAPESP) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), for a research fellowship. MV further acknowledges support by the Deutsche Forschungsgemeinschaft (grant VE247/9-1).

Compliance with ethical standards

Samples were collected under collection permit SISBIO #52865 and the study has been approved by the ethics committee at the Universidade Estadual Paulista (UNESP; CEUA N36/2015).

Supplementary material

248_2017_1109_MOESM1_ESM.docx (200 kb)
ESM 1 (DOCX 200 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Departamento de ZoologiaUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Campus Rio ClaroRio ClaroBrazil
  2. 2.Zoological Institute, Technische Universität BraunschweigBraunschweigGermany
  3. 3.Centro de Aquicultura (CAUNESP)Universidade Estadual Paulista (UNESP), Instituto de Biociências, Campus Rio ClaroRio ClaroBrazil

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