期刊
GENOME BIOLOGY AND EVOLUTION
卷 10, 期 2, 页码 452-457出版社
OXFORD UNIV PRESS
DOI: 10.1093/gbe/evy020
关键词
Tenacibaculum; tenacibaculosis; genomes; fish pathogens; virulence; evolution
资金
- EU EMIDA ERA-NET project Control Flavobacteriaceae Infections in European Fish farms
- Agence Nationale pour la Recherche [ANR-14-CE19-0020]
- Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT, Chile) [CONICYT/FONDAP/15110027]
- National Infrastructure France Genomique as part of the Investissement d'avenir program [ANR-10-INBS-09]
- [FONDECYT 1150695]
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 by Grothusen et al. (2016).
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