Social evolution: Kin preference in a social microbe

  title={Social evolution: Kin preference in a social microbe},
  author={N. J. Mehdiabadi and C. N. Jack and T. T. Farnham and T. G. Platt and Sara E. Kalla and G. Shaulsky and D. Queller and J. Strassmann},
  • N. J. Mehdiabadi, C. N. Jack, +5 authors J. Strassmann
  • Published 2006
  • Medicine, Psychology
  • Nature
  • Kin recognition helps cooperation to evolve in many animals, but it is uncertain whether microorganisms can also use it to focus altruistic behaviour on relatives. Here we show that the social amoeba Dictyostelium purpureum prefers to form groups with its own kin in situations where some individuals die to assist others. By directing altruism towards kin, D. purpureum should generally avoid the costs of chimaerism experienced by the related D. discoideum. 
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