title: Population dynamics in a spin-glass model of chemical evolution.
abstract: We introduce a simple model describing the evolution of a population of information-carrying macromolecules. We discuss the asymptotic dependence of the variability of the population on different parameters, representing the severity or the fluctuations of the environment. We show the existence of a transition separating a neutralist evolutionary regime from a trapped one. We investigate the dependence of the evolutionary behavior of the population on the correlation properties of the fitness landscape.
authors.affiliation: Dipartimento di Scienze Fisiche, Università di Napoli, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Amitrano
authors.forename: L
authors.initials: L
authors.lastname: Peliti
authors.forename: M
authors.initials: M
authors.lastname: Saber
mesh_terms: D005075:Biological Evolution; D003198:Computer Simulation; D008962:Models, Theoretical; D009154:Mutation; D009696:Nucleic Acids / Q000235:genetics; D011157:Population Dynamics; D011506:Proteins / Q000235:genetics; D012641:Selection, Genetic
chemical_list: D009696:Nucleic Acids; D011506:Proteins