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Microbiota and Microsatellite genotypes of Pacific oysters stemming from three oyster bed in the Northern Wadden Sea

Background: Studies of oyster microbiomes have revealed that a limited number of microbes, including pathogens, can dominate microbial communities in host tissues such as gills and gut. Much of the bacterial diversity however remains underexplored and unexplained, although environmental conditions and host genetics have been implicated. We used 454 next generation 16S rRNA amplicon sequencing of individually tagged PCR reactions to explore the diversity of bacterial communities in gill tissue of the invasive Pacific oyster Crassostrea gigas stemming from genetically differentiated beds under ambient outdoor conditions and after a multifaceted disturbance treatment imposing stress on the host. Results: While the gill associated microbial communities in oysters were dominated by few abundant taxa (i.e. Sphingomonas, Mycoplasma) the distribution of rare bacterial groups correlated to relatedness between the hosts under ambient conditions. Exposing the host to disturbance broke apart this relationship by removing rare phylotypes thereby reducing overall microbial diversity. Shifts in the microbiome composition in response to stress did not result in a net increase in genera known to contain potentially pathogenic strains. Conclusion: The decrease in microbial diversity and the disassociation between population genetic structure of the hosts and their associated microbiome suggest that disturbance (i.e. stress) may play a significant role for the assembly of the natural microbiome. Such community shifts may in turn also feed back on the course of disease and the occurrence of mass mortality events in oyster populations.

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Cite this as

Wegner, K Mathias, Volkenborn, Nils, Peter, Hannes, Eiler, Alexander (2013). Dataset: Microbiota and Microsatellite genotypes of Pacific oysters stemming from three oyster bed in the Northern Wadden Sea. https://doi.org/10.1594/PANGAEA.819896

DOI retrieved: 2013

Additional Info

Field Value
Imported on November 29, 2024
Last update November 29, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.819896
Author Wegner, K Mathias
Given Name K Mathias
Family Name Wegner
More Authors
Volkenborn, Nils
Peter, Hannes
Eiler, Alexander
Source Creation 2013
Publication Year 2013
Resource Type application/zip - filename: Wegner_2013
Subject Areas
Name: Biosphere

Related Identifiers
Title: Disturbance induced decoupling between host genetics and composition of the associated microbiome
Identifier: https://doi.org/10.1186/1471-2180-13-252
Type: DOI
Relation: IsSupplementTo
Year: 2013
Source: BMC Microbiology
Authors: Wegner K Mathias , Volkenborn Nils , Peter Hannes , Eiler Alexander .