Six strains were isolated from the hemolymph of the spider crab Maja brachydactyla, captured in Spain, and one from a diseased blue mussel, Mytilus edulis. The 16S rRNA gene sequences showed close similarity to the recently described Photobacterium swingsii (98.1 %) and to a lesser degree to Photobacterium aquimaris (97.8 %). MLSA analyses showed a monophyletic group including P. swingsii that form a new subclade. All genomic analyses (Average Nucleotide Identity, Average Amino Acid Identity, and in silico DNA–DNA) clearly separate the strains analysed from P. swingsii with values below the thresholds to delimit a new species. The phenotypic, genotypic and genomic data presented here clearly place these strains as a coherent group within the genus Photobacterium, for which we propose the name Photobacterium sanguinicancri sp. nov. Strain CAIM 1827T (=CECT 7579T, =DSM 24670T) is proposed as the type strain of the species.
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