On differentiation and homeostatic behaviours of boolean dynamical systems

  • Authors:
  • Élisabeth Remy;Paul Ruet

  • Affiliations:
  • CNRS – Institut de Mathématiques de Luminy, Marseille Cedex 9, France;CNRS – Institut de Mathématiques de Luminy, Marseille Cedex 9, France

  • Venue:
  • Transactions on Computational Systems Biology VII
  • Year:
  • 2006

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Abstract

We study rules proposed by the biologist R. Thomas relating the structure of a concurrent system of interacting genes (represented by a signed directed graph called a regulatory graph) with its dynamical properties. We prove that the results in [10] are stable under projection, and this enables us to relax the assumptions under which they are valid. More precisely, we relate here the presence of a positive (resp. negative) circuit in a regulatory graph to a more general form of biological differentiation (resp. of homeostasis).