DISTINGUISHING CAUSES OF VIRULENCE EVOLUTION: REPLY TO ALIZON AND MICHALAKIS

Authors

  • jeff smith

    1. Department of Ecology & Evolutionary Biology, Rice University, Houston, Texas 77005
    2. E-mail: jeffsmith@wustl.edu
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    • 3Current address: Department of Biology, Washington University in St. Louis, Campus Box 1137, One Brookings Drive, St. Louis, Missouri 63130.


Abstract

In a recent study of the symbiosis between bacteria and plasmids, the available evidence suggests that experimental evolution of plasmid virulence was primarily driven by within-host competition caused by superinfection. The data do not exclude the possibility, however, that a trade-off between virulence and infectious transmission to uninfected bacteria also played a minor role.

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