Seminar with Andre Leier

Place: Room 621, GP South (Building 78)
Time: Thursday 9th Feb, 10:30 morning tea. 11:00am seminar

Topic: Evolving Genetic Regulatory Networks Performing as Oscillators and
Switches in the Stochastic Regime

Speaker: Andre Leier

Abstract:
 
Recent studies have shown that small genetic regulatory networks (GRNs) can
be evolved in silico displaying certain dynamics in the underlying
mathematical model. To take the stochastic nature of GRNs into account, our
evolutionary approach models GRNs as biochemical reaction networks based on
simple enzyme kinetics and simulates them by using Gillespie's stochastic
simulation algorithm (SSA). The relevance of considering intrinsic
stochasticity is demonstrated by GRNs which show certain dynamics in the SSA
but not in the ODE regime. First results in the evolution of GRNs performing
as stochastic oscillators and switches are presented. It is expected that
evolutionary approaches can help to gain a better understanding of
biological design principles and to assist in synthetic biology.






World-class basic and applied inter-disciplinary research on questions fundamental to understanding, designing and managing complex systems
2009 The ARC Centre for Complex Systems, Australia