Data/hora: 09/06/2024 11:48:58

Provedor de dados: | 5
País: | France
Título: | "Ménage à trois": a selfish genetic element uses a virus to propagate within Thermotogales
Autores: | Lossouarn, Julien; Nesbo, Camilla L.; Mercier, Coraline; Zhaxybayeva, Olga; Johnson, Milo S.; Charchuck, Rhianna; Farasin, Julien; Bienvenu, Nadege; Baudoux, Anne-claire; Michoud, Gregoire; Jebbar, Mohamed; Geslin, Claire.
Data: | 2015-09
Ano: | 2015
Resumo: | Prokaryotic viruses play a major role in the microbial ecology and evolution. However, the virosphere associated with deep-sea hydrothermal ecosystems remains largely unexplored. Numerous instances of lateral gene transfer have contributed to the complex and incongruent evolutionary history of Thermotogales, an order well represented in deep-sea hydrothermal vents. The presence of clustered regularly interspaced short palindromic repeats (CRISPR) loci has been reported in all Thermotogales genomes, suggesting that these bacteria have been exposed to viral infections that could have mediated gene exchange. In this study, we isolated and characterized the first virus infecting bacteria from the order Thermotogales, Marinitoga piezophila virus 1 (MPV1). The host, Marinitoga piezophila is a thermophilic, anaerobic and piezophilic bacterium isolated from a deep-sea hydrothermal chimney. MPV1 is a temperate Siphoviridae-like virus with a 43.7 kb genome. Surprisingly, we found that MPV1 virions carry not only the viral DNA but preferentially package a plasmid of 13.3 kb (pMP1) also carried by M. piezophila. This ‘ménage à trois’ highlights potential relevance of selfish genetic elements in facilitating lateral gene transfer in the deep-sea biosphere.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00254/36483/36732.pdf

DOI:10.1111/1462-2920.12783

http://archimer.ifremer.fr/doc/00254/36483/

Editor: | Wiley-blackwell
Formato: | application/pdf
Fonte: | Environmental Microbiology (1462-2912) (Wiley-blackwell), 2015-09 , Vol. 17 , N. 9 , P. 3278-3288

Fonte:

2015 Society for Applied Microbiology and John Wiley &amp; Sons Ltd

info:eu-repo/semantics/openAccess

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