The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence
Abstract The gut microbiome plays an important role in maintaining health and productivity of farmed fish. However, the functional role of most gut microorganisms remains unknown. Identifying the stable members of the gut microbiota and understanding their functional roles could aid in the selection...
Published in: | FEMS Microbes |
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Oxford University Press (OUP)
2024
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Online Access: | http://dx.doi.org/10.1093/femsmc/xtae011 https://academic.oup.com/femsmicrobes/advance-article-pdf/doi/10.1093/femsmc/xtae011/57312712/xtae011.pdf https://academic.oup.com/femsmicrobes/article-pdf/doi/10.1093/femsmc/xtae011/57599319/xtae011.pdf |
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croxfordunivpr:10.1093/femsmc/xtae011 2024-09-15T18:33:06+00:00 The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence Knobloch, Stephen Skirnisdóttir, Sigurlaug Dubois, Marianne Mayolle, Lucie Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ H2020 AVS 2024 http://dx.doi.org/10.1093/femsmc/xtae011 https://academic.oup.com/femsmicrobes/advance-article-pdf/doi/10.1093/femsmc/xtae011/57312712/xtae011.pdf https://academic.oup.com/femsmicrobes/article-pdf/doi/10.1093/femsmc/xtae011/57599319/xtae011.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ FEMS Microbes volume 5 ISSN 2633-6685 journal-article 2024 croxfordunivpr https://doi.org/10.1093/femsmc/xtae011 2024-07-15T04:26:06Z Abstract The gut microbiome plays an important role in maintaining health and productivity of farmed fish. However, the functional role of most gut microorganisms remains unknown. Identifying the stable members of the gut microbiota and understanding their functional roles could aid in the selection of positive traits or act as a proxy for fish health in aquaculture. Here, we analyse the gut microbial community of farmed juvenile Arctic char (Salvelinus alpinus) and reconstruct the metabolic potential of its main symbionts. The gut microbiota of Arctic char undergoes a succession in community composition during the first weeks post-hatch, with a decrease in Shannon diversity and the establishment of three dominant bacterial taxa. The genome of the most abundant bacterium, a Mycoplasma sp., shows adaptation to rapid growth in the nutrient-rich gut environment. The second most abundant taxon, a Brevinema sp., has versatile metabolic potential, including genes involved in host mucin degradation and utilization. However, during periods of absent gut content, a Ruminococcaceae bacterium becomes dominant, possibly outgrowing all other bacteria through the production of secondary metabolites involved in quorum sensing and cross-inhibition while benefiting the host through short-chain fatty acid production. Whereas Mycoplasma is often present as a symbiont in farmed salmonids, we show that the Ruminococcaceae species is also detected in wild Arctic char, suggesting a close evolutionary relationship between the host and this symbiotic bacterium. Article in Journal/Newspaper Salvelinus alpinus Oxford University Press FEMS Microbes |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract The gut microbiome plays an important role in maintaining health and productivity of farmed fish. However, the functional role of most gut microorganisms remains unknown. Identifying the stable members of the gut microbiota and understanding their functional roles could aid in the selection of positive traits or act as a proxy for fish health in aquaculture. Here, we analyse the gut microbial community of farmed juvenile Arctic char (Salvelinus alpinus) and reconstruct the metabolic potential of its main symbionts. The gut microbiota of Arctic char undergoes a succession in community composition during the first weeks post-hatch, with a decrease in Shannon diversity and the establishment of three dominant bacterial taxa. The genome of the most abundant bacterium, a Mycoplasma sp., shows adaptation to rapid growth in the nutrient-rich gut environment. The second most abundant taxon, a Brevinema sp., has versatile metabolic potential, including genes involved in host mucin degradation and utilization. However, during periods of absent gut content, a Ruminococcaceae bacterium becomes dominant, possibly outgrowing all other bacteria through the production of secondary metabolites involved in quorum sensing and cross-inhibition while benefiting the host through short-chain fatty acid production. Whereas Mycoplasma is often present as a symbiont in farmed salmonids, we show that the Ruminococcaceae species is also detected in wild Arctic char, suggesting a close evolutionary relationship between the host and this symbiotic bacterium. |
author2 |
H2020 AVS |
format |
Article in Journal/Newspaper |
author |
Knobloch, Stephen Skirnisdóttir, Sigurlaug Dubois, Marianne Mayolle, Lucie Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ |
spellingShingle |
Knobloch, Stephen Skirnisdóttir, Sigurlaug Dubois, Marianne Mayolle, Lucie Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence |
author_facet |
Knobloch, Stephen Skirnisdóttir, Sigurlaug Dubois, Marianne Mayolle, Lucie Kolypczuk, Laetitia Leroi, Françoise Leeper, Alexandra Passerini, Delphine Marteinsson, Viggó Þ |
author_sort |
Knobloch, Stephen |
title |
The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence |
title_short |
The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence |
title_full |
The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence |
title_fullStr |
The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence |
title_full_unstemmed |
The gut microbiome of farmed Arctic char ( Salvelinus alpinus) is shaped by feeding stage and nutrient presence |
title_sort |
gut microbiome of farmed arctic char ( salvelinus alpinus) is shaped by feeding stage and nutrient presence |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/femsmc/xtae011 https://academic.oup.com/femsmicrobes/advance-article-pdf/doi/10.1093/femsmc/xtae011/57312712/xtae011.pdf https://academic.oup.com/femsmicrobes/article-pdf/doi/10.1093/femsmc/xtae011/57599319/xtae011.pdf |
genre |
Salvelinus alpinus |
genre_facet |
Salvelinus alpinus |
op_source |
FEMS Microbes volume 5 ISSN 2633-6685 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/femsmc/xtae011 |
container_title |
FEMS Microbes |
_version_ |
1810474843491008512 |