Europhys. Lett.
Volume 68, Number 6, December 2004
Page(s) 901 - 907
Section Interdisciplinary physics and related areas of science and technology
Published online 17 November 2004
Europhys. Lett., 68 (6), pp. 901-907 (2004)
DOI: 10.1209/epl/i2004-10278-2

Genetic information and self-organized criticality

P. R. Wills1, J. M. Marshall1, 2 and P. J. Smith1

1  Department of Physics, University of Auckland Private Bag 92019, Auckland, New Zealand
2  Department of Biomathematics, UCLA - Los Angeles, CA 90095-1766 USA

received 23 August 2004; accepted in final form 14 October 2004
published online 17 November 2004

The numerical fitnesses of species defined in the Bak-Sneppen model of self-organized criticality are interpreted as binary strings. This allows new species to be generated by mutation of survivors. It is shown that selection in Bak-Sneppen systems defined on both uniform and random lattices produces genotypes in conformity with the Eigen criterion for the accumulation of genetic information in macromolecular sequences.

87.23.Kg - Dynamics of evolution.
05.65.+b - Self-organized systems.
05.70.Jk - Critical point phenomena.

© EDP Sciences 2004