Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 12: Focus Session: Statistical Physics-Based Methods in Molecular Evolution - organized by Alexander Schug and Martin Weigt (joint session BP/DY)

DY 12.7: Vortrag

Montag, 12. März 2018, 16:45–17:00, H 2013

The evolutionary consequences of population spread on curved surfaces — Daniel A. Beller¹, Kim M. J. Alards², Ricardo A. Mosna³, Federico Toschi², and •Wolfram Möbius⁴ — ¹Brown University, Providence, RI, USA — ²TU Eindhoven, Eindhoven, The Netherlands — ³Universidade Estadual de Campinas, Campinas, SP, Brazil — ⁴University of Exeter, Exeter, United Kingdom

We investigate the evolutionary dynamics of populations growing and expanding on curved surfaces. Using a combination of individual-based simulations and theory we characterize the effect of individual features (cones and spherical caps) on the shape of the population front and the genetic composition of an expanding population. We find that, on sufficiently large scales, geodesics allow us to describe both population and evolutionary dynamics quantitatively. Using these findings, we characterize the consequences of large-scale surface roughness on genetic diversity and compare to the case of heterogeneous but flat environments.