Comparable response of wild rodent gut microbiome to anthropogenic habitat contamination
Lavrinienko, A., Hämäläinen, A., Hindström, R., Tukalenko, E., Boratyński, Z., Kivisaari, K., Mousseau, T. A., Watts, P. C., & Mappes, T. (2021). Comparable response of wild rodent gut microbiome to anthropogenic habitat contamination. Molecular Ecology, 30(14), 3485-3499. https://doi.org/10.1111/mec.15945
Published inMolecular Ecology
© 2021 The Authors. Molecular Ecology published by John Wiley & Sons Ltd
Species identity is thought to dominate over environment in shaping wild rodent gut microbiota, but it remains unknown whether the responses of host gut microbiota to shared anthropogenic habitat impacts are species‐specific or if the general gut microbiota response is similar across host species. Here, we compare the influence of exposure to radionuclide contamination on the gut microbiota of four wild mouse species: Apodemus flavicollis, A. sylvaticus, A. speciosus, A. argenteus. Building on the evidence that radiation impacts bank vole (Myodes glareolus) gut microbiota, we hypothesised that radiation exposure has general impact on rodent gut microbiota. Because we sampled (n=288) two species pairs of Apodemus mice that occur in sympatry in habitats affected by the Chernobyl and Fukushima nuclear accidents, these comparisons provide an opportunity for a general assessment of the effects of exposure to environmental contamination (radionuclides) on gut microbiota across host phylogeny and geographical areas. In general agreement with our hypothesis, analyses of bacterial 16S rRNA gene sequences revealed that radiation exposure alters the gut microbiota composition and structure in three out of the four species of Apodemus mice. The notable lack of association between the gut microbiota and soil radionuclide contamination in one mouse species from Fukushima (A. argenteus) likely reflects host “radiation escape” through its unique tree‐dwelling lifestyle. The finding that host ecology can modulate effects of radiation exposure offers an interesting counterpoint for future analyses into effects of radiation or any other toxic exposure on host and its associated microbiota. Our data show that exposure to radionuclide contamination associates with comparable gut microbiota responses across multiple species of rodents. ...
ISSN Search the Publication Forum0962-1083
Dataset(s) related to the publicationhttps://www.ebi.ac.uk/ena/browser/view/PRJEB44039
Publication in research information system
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Related funder(s)Academy of Finland
Funding program(s)Academy Project, AoF
Additional information about fundingAcademy of Finland, Grant/Award Number: 287153 and 268670; Finnish Cultural Foundation; Oskar Öflund Stiftelse; University of Oulu
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