Comparative Genomics of Tenacibaculum dicentrarchi and "Tenacibaculum finnmarkense" Highlights Intricate Evolution of Fish-Pathogenic Species
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Fecha
2018-02
Profesor/a Guía
Facultad/escuela
Idioma
en
Título de la revista
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Título del volumen
Editor
Oxford University Press
Nombre de Curso
Licencia CC
Licencia CC
Resumen
The genus Tenacibaculum encompasses several species pathogenic for marine fish. Tenacibaculum dicentrarchi and "Tenacibaculum finnmarkense" (Quotation marks denote species that have not been validly named.) were retrieved from skin lesions of farmed fish such as European sea bass or Atlantic salmon. They cause a condition referred to as tenacibaculosis and severe outbreaks and important fish losses have been reported in Spanish, Norwegian, and Chilean marine farms. We report here the draft genomes of the T. dicentrarchi and "T. finnmarkense" type strains. These genomes were compared with draft genomes from field isolates retrieved from Chile and Norway and with previously published Tenacibaculum genomes. We used Average Nucleotide Identity and core genome-based phylogeny as a proxy index for species boundary delineation. This work highlights evolution of closely related fish-pathogenic species and suggests that homologous recombination likely contributes to genome evolution. It also corrects the species affiliation of strain AYD7486TD claimed byGrothusen et al. (2016).
Notas
Indexación: Scopus.
Palabras clave
Evolution, Fish pathogens, Genomes, Tenacibaculosis, Tenacibaculum, Virulence
Citación
Genome Biology and Evolution, 10(2), pp. 452-457