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Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens
Most of our knowledge regarding the biodiversity of gut microbes comes from terrestrial organisms or marine species of economic value, with less emphasis on ecologically important species. Here we investigate the bacterial composition associated with the gut of Siganus fuscescens, a rabbitfish that...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
PeerJ Inc.
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5437856/ https://www.ncbi.nlm.nih.gov/pubmed/28533966 http://dx.doi.org/10.7717/peerj.3317 |
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author | Nielsen, Shaun Wilkes Walburn, Jackson Vergés, Adriana Thomas, Torsten Egan, Suhelen |
author_facet | Nielsen, Shaun Wilkes Walburn, Jackson Vergés, Adriana Thomas, Torsten Egan, Suhelen |
author_sort | Nielsen, Shaun |
collection | PubMed |
description | Most of our knowledge regarding the biodiversity of gut microbes comes from terrestrial organisms or marine species of economic value, with less emphasis on ecologically important species. Here we investigate the bacterial composition associated with the gut of Siganus fuscescens, a rabbitfish that plays an important ecological role in coastal ecosystems by consuming seaweeds. Members of Firmicutes, Bacteroidetes and delta-Proteobacteria were among the dominant taxa across samples taken from the contents and the walls (sites) of the midgut and hindgut (location). Despite the high variability among individual fish, we observed statistically significant differences in beta-diversity between gut sites and gut locations. Some bacterial taxa low in abundance in the midgut content (e.g., Desulfovibrio) were found in greater abundances on the midgut wall and within the hindgut, suggesting that the gut may select for specific groups of environmental and/or food-associated microorganisms. In contrast, some distinct taxa present in the midgut content (e.g., Synechococcus) were noticeably reduced in the midgut wall and hindgut, and are thus likely to be representative of transient microbiota. This is the first assessment of the bacterial diversity associated with the gut of S. fuscescens and highlights the need to consider the variability across different gut locations and sites when analyzing fish gut microbiomes. |
format | Online Article Text |
id | pubmed-5437856 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | PeerJ Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-54378562017-05-22 Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens Nielsen, Shaun Wilkes Walburn, Jackson Vergés, Adriana Thomas, Torsten Egan, Suhelen PeerJ Ecology Most of our knowledge regarding the biodiversity of gut microbes comes from terrestrial organisms or marine species of economic value, with less emphasis on ecologically important species. Here we investigate the bacterial composition associated with the gut of Siganus fuscescens, a rabbitfish that plays an important ecological role in coastal ecosystems by consuming seaweeds. Members of Firmicutes, Bacteroidetes and delta-Proteobacteria were among the dominant taxa across samples taken from the contents and the walls (sites) of the midgut and hindgut (location). Despite the high variability among individual fish, we observed statistically significant differences in beta-diversity between gut sites and gut locations. Some bacterial taxa low in abundance in the midgut content (e.g., Desulfovibrio) were found in greater abundances on the midgut wall and within the hindgut, suggesting that the gut may select for specific groups of environmental and/or food-associated microorganisms. In contrast, some distinct taxa present in the midgut content (e.g., Synechococcus) were noticeably reduced in the midgut wall and hindgut, and are thus likely to be representative of transient microbiota. This is the first assessment of the bacterial diversity associated with the gut of S. fuscescens and highlights the need to consider the variability across different gut locations and sites when analyzing fish gut microbiomes. PeerJ Inc. 2017-05-17 /pmc/articles/PMC5437856/ /pubmed/28533966 http://dx.doi.org/10.7717/peerj.3317 Text en ©2017 Nielsen et al. http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
spellingShingle | Ecology Nielsen, Shaun Wilkes Walburn, Jackson Vergés, Adriana Thomas, Torsten Egan, Suhelen Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens |
title | Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens |
title_full | Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens |
title_fullStr | Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens |
title_full_unstemmed | Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens |
title_short | Microbiome patterns across the gastrointestinal tract of the rabbitfish Siganus fuscescens |
title_sort | microbiome patterns across the gastrointestinal tract of the rabbitfish siganus fuscescens |
topic | Ecology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5437856/ https://www.ncbi.nlm.nih.gov/pubmed/28533966 http://dx.doi.org/10.7717/peerj.3317 |
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