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J Genomics. 2019 May 9;7:46-49. doi: 10.7150/jgen.35061. eCollection 2019.

Genome Sequence of Kordia sp. Strain SMS9 Identified in a Non-Axenic Culture of the Diatom Skeletonema marinoi.

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Department of Marine Sciences, University of Gothenburg, Göteborg, Sweden.
Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden.
Clinical Genomics Göteborg, SciLifeLab, Göteborg, Sweden.
Gothenburg Global Biodiversity Centre, Göteborg, Sweden.


Initial efforts to sequence the genome of the marine diatom Skeletonema marinoi were hampered by the presence of genetic material from bacteria, and there was sufficient material from some of these bacteria to enable the assembly of full chromosomes. Here, we report the genome of strain SMS9, one such bacterial species identified in a non-axenic culture of S. marinoi strain ST54. Its 5,482,391 bp circular chromosome contains 4,641 CDSs, and has a G+C content of 35.6%. Based on 16S rRNA comparison, phylotaxonomic analysis, and the genome similarity metrics dDDH and OrthoANI, we place this strain in the genus Kordia, and to the best of our knowledge, this is the first Kordia species to be initially described from European waters. As attempts to culture this strain have failed, however, the specifics of its relationship with S. marinoi are still uncertain.


Diatom; Kordia; Marine sediment; Microbiome; Skeletonema; Whole Genome Sequencing

Conflict of interest statement

Competing Interests: The authors have declared that no competing interest exists.

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