Berlin 2018 – wissenschaftliches Programm

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SOE: Fachverband Physik sozio-ökonomischer Systeme

SOE 7: Poster

SOE 7.16: Poster

Montag, 12. März 2018, 17:00–20:00, Poster E

Creating the origin of the first Darwinian species — •Charlotte V Vogelbusch¹, Steven H Strogatz², Hinrich Arnoldt¹, and Marc Timme¹ — ¹Chair for Networc Dynamics, Institute for Theoretical Physics and Center for Advancing Electronics Dresden (cfaed), TU Dresden, Dresden, Germany — ²Department of Mathematics, Cornell University, Ithaca, NY 14853, USA

Today's Darwinian evolution based on vertical descent was preceded by collective evolution dominated by horizontal gene transfer (HGT). Currently, no mechanistic dynamical model consistently explains the transition to start Darwinian evolution. Here we introduce a simple model of collectively evolving progenotes, describing genotype changes influenced by individual fitness, mutation, selection and HGT. It is based on a recent proposal characterizing how individual progenotes are dynamically distributed in the space of all possible genotypes by the population entropy [1]. The 'competence', describing the inclination to perform HGT events, was so far considered a non-dynamical bifurcation parameter. In our new model, HGT competence itself evolves dynamically and interacts with the population dynamics. Combining stochastic and nonlinear mean field dynamics illustrates a path towards the first species and the start of Darwinian evolution.

Ref.: [1] Phys. Rev. E 92, 052909 (2015)