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Distribution of prophages in the Oenococcus oeni species

Abstract : Oenococcus oeni is the most exploited lactic acid bacterium in the wine industry and drives the malolactic fermentation of wines. Although prophage-like sequences have been identified in the species, many are not characterized, and a global view of their integration and distribution amongst strains is currently lacking. In this work, we analyzed the complete genomes of 231 strains for the occurrence of prophages, and analyzed their size and positions of insertion. Our data show the limited variation in the number of prophages in O. oeni genomes, and that six sites of insertion within the bacterial genome are being used for site-specific recombination. Prophage diversity patterns varied significantly for different host lineages, and environmental niches. Overall, the findings highlight the pervasive presence of prophages in the O. oeni species, their role as a major source of within-species bacterial diversity and drivers of horizontal gene transfer. Our data also have implications for enhanced understanding of the prophage recombination events which occurred during evolution of O. oeni, as well as the potential of prophages in influencing the fitness of these bacteria in their distinct niches.
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https://hal.inrae.fr/hal-03307703
Contributor : Marion Desailly <>
Submitted on : Thursday, July 29, 2021 - 4:34:23 PM
Last modification on : Friday, July 30, 2021 - 3:17:57 AM

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Olivier Claisse, Ame Chaïb, Fety Jaomanjaka, Cécile Philippe, Yasma Barchi, et al.. Distribution of prophages in the Oenococcus oeni species. Microorganisms, MDPI, 2021, 9 (4), pp.856. ⟨10.3390/microorganisms⟩. ⟨hal-03307703⟩

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