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      The microbial pan-genome

      , , , ,
      Current Opinion in Genetics & Development
      Elsevier BV

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          Abstract

          A decade after the beginning of the genomic era, the question of how genomics can describe a bacterial species has not been fully addressed. Experimental data have shown that in some species new genes are discovered even after sequencing the genomes of several strains. Mathematical modeling predicts that new genes will be discovered even after sequencing hundreds of genomes per species. Therefore, a bacterial species can be described by its pan-genome, which is composed of a "core genome" containing genes present in all strains, and a "dispensable genome" containing genes present in two or more strains and genes unique to single strains. Given that the number of unique genes is vast, the pan-genome of a bacterial species might be orders of magnitude larger than any single genome.

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          Author and article information

          Journal
          Current Opinion in Genetics & Development
          Current Opinion in Genetics & Development
          Elsevier BV
          0959437X
          December 2005
          December 2005
          : 15
          : 6
          : 589-594
          Article
          10.1016/j.gde.2005.09.006
          16185861
          0c0a05cb-c8d3-4232-ba8e-8c356fd67fa6
          © 2005

          https://www.elsevier.com/tdm/userlicense/1.0/

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