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  1. Nov 2020
    1. IS186-mediated integration of the plasmid into the chromosome or deletion of these accessory genes from an evolved plasmid that remained capable of self-replication conferred greater fitness benefits than SP formation

      Can we say this is because of the combined fitness benefit

      • by avoiding maintenance of a plasmid and
        • lower expression of proteins?

      Especially considering that there is expression of the accessory genes (ex: GFP in fig.2e)-> so the protein level fitness burden still exists, albeit at a lower extent.

      How much of this burden is attributed to keeping a plasmid around?, maybe this could be tested with a low copy pSC101 type plasmid or by deleting all the accessory genes and repeating the evolution experiment to specifically look for the integrants this time