Prophage Contribution to Bacterial Population Dynamics

Lionello Bossi, Juan A. Fuentes, Guido Mora, Nara Figueroa-Bossi

Research output: Contribution to journalArticlepeer-review

130 Citations (Scopus)


Cocultures of Salmonella strains carrying or lacking specific prophages undergo swift composition changes as a result of phage-mediated killing of sensitive bacteria and lysogenic conversion of survivors. Thus, spontaneous prophage induction in a few lysogenic cells enhances the competitive fitness of the lysogen population as a whole, setting a selection regime that forces maintenance and spread of viral DNA. This is likely to account for the profusion of prophage sequences in bacterial genomes and may contribute to the evolutionary success of certain phylogenetic lineages.

Original languageEnglish
Pages (from-to)6467-6471
Number of pages5
JournalJournal of Bacteriology
Issue number21
Publication statusPublished - Nov 2003

ASJC Scopus subject areas

  • Microbiology
  • Molecular Biology


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