Fig. 4.

V. splendidus core genome phylogeny. Neighbour-joining core genome phylogeny of 18 V. splendidus isolates sequenced here and 102 V . splendidus isolates accessed on the NCBI coloured by country of isolation. The scale bar represents an estimated dissimilarity of 2 % of the alignment. The tree is annotated with the source of isolation. Publicly available samples largely come from the USA and were sampled in seawater. The population structure of the dataset includes a large cluster of 95 genomes (purple). Isolates from Ireland are distributed throughout this population. However, one cluster of five highly similar isolates can be identified (blue).