Combined genotyping, microbial diversity and metabolite profiling studies on farmed Mytilus spp. from Kiel Fjord

Utermann, Caroline, Parrot, Delphine, Breusing, Corinna, Stuckas, Heiko, Staufenberger, Tim, Blümel, Martina, Labes, Antje and Tasdemir, Deniz (2018) Combined genotyping, microbial diversity and metabolite profiling studies on farmed Mytilus spp. from Kiel Fjord Scientific Reports, 8 (1). Art.Nr. 7983. DOI 10.1038/s41598-018-26177-y.

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The blue mussel Mytilus is a popular food source with high economical value. Species of the M. edulis complex (M. edulis, M. galloprovincialis and M. trossulus) hybridise whenever their geographic ranges overlap posing difficulties to species discrimination, which is important for blue mussel aquaculture. The aim of this study was to determine the genetic structure of farmed blue mussels in Kiel Fjord. Microbial and metabolic profile patterns were studied to investigate a possible dependency on the genotype of the bivalves. Genotyping confirmed the complex genetic structure of the Baltic Sea hybrid zone and revealed an unexpected dominance of M. trossulus alleles being in contrast to the predominance of M. edulis alleles described for wild Baltic blue mussels. Culture-dependent and -independent microbial community analyses indicated the presence of a diverse Mytilus-associated microbiota, while an LC-MS/MS-based metabolome study identified 76 major compounds dominated by pigments, alkaloids and polyketides in the whole tissue extracts. Analysis of mussel microbiota and metabolome did not indicate genotypic dependence, but demonstrated high intraspecific variability of farmed mussel individuals. We hypothesise that individual differences in microbial and metabolite patterns may be caused by high individual plasticity and might be enhanced by e.g. nutritional condition, age and gender.

Document Type: Article
Keywords: Marine biology; Metabolomics; Microbial ecology; Natural products; Population genetics
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Evolutionary Ecology of Marine Fishes
OceanRep > GEOMAR > FB3 Marine Ecology > FB3-MN Marine natural products chemistry
Refereed: Yes
DOI etc.: 10.1038/s41598-018-26177-y
ISSN: 2045-2322
Date Deposited: 24 May 2018 09:10
Last Modified: 24 May 2018 09:10

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