Whole-genome-based taxonomy as the most accurate approach to identify Flavobacterium species.

The genus Flavobacterium comprises a diversity of species, including fish pathogens. Multiple techniques have been used to identify isolates of this genus, such as phenotyping, polymerase chain reaction genotyping, and in silico whole-genome taxonomy. In this study, we demonstrate that whole-genome-based taxonomy, using average nucleotide identity and molecular phylogeny, is the most accurate approach for Flavobacterium species.

Specific amino acid changes correlate with pathogenic flavobacteria.

is a genus of microorganisms living in a variety of hosts and habitats across the globe. Some species are found in fish organs, and only a few, such as and , cause severe disease and losses in fish farms. The evolution of flavobacteria that are pathogenic to fish is unknown, and the protein changes accountable for the selection of their colonization to fish have yet to be determined.

MQM1, a bacteriophage infecting strains of Aeromonas salmonicida subspecies salmonicida carrying Prophage 3.

Aeromonas salmonicida subsp. salmonicida is a Gam-negative bacterium responsible for furunculosis in fish. Because this aquatic bacterial pathogen has a rich reservoir of antibiotic-resistant genes, it is essential to investigate antibacterial alternatives, including the use of phages.

Host Dependent-Transposon for a Plasmid Found in subsp. That Bears a Gene for Chloramphenicol Resistance.

Plasmids that carry antibiotic resistance genes occur frequently in subsp. , an aquatic pathogen with severe consequences in salmonid farming. Here, we describe a 67 kb plasmid found in the subsp.