{ "id": "cond-mat/0202054", "version": "v1", "published": "2002-02-04T17:20:09.000Z", "updated": "2002-02-04T17:20:09.000Z", "title": "Punctuated evolution for the quasispecies model", "authors": [ "Joachim Krug", "Christian Karl" ], "journal": "Physica A 318 (2003) 137-143", "doi": "10.1016/S0378-4371(02)01417-6", "categories": [ "cond-mat.stat-mech", "cond-mat.dis-nn", "q-bio" ], "abstract": "Biological evolution in a sequence space with random fitnesses is studied within Eigen's quasispecies model. A strong selection limit is employed, in which the population resides at a single sequence at all times. Evolutionary trajectories start at a randomly chosen sequence and proceed to the global fitness maximum through a small number of intermittent jumps. The distribution of the total evolution time displays a universal power law tail with exponent -2. Simulations show that the evolutionary dynamics is very well represented by a simplified shell model, in which the sub-populations at local fitness maxima grow independently. The shell model allows for highly efficient simulations, and provides a simple geometric picture of the evolutionary trajectories.", "revisions": [ { "version": "v1", "updated": "2002-02-04T17:20:09.000Z" } ], "analyses": { "keywords": [ "quasispecies model", "punctuated evolution", "universal power law tail", "shell model", "total evolution time displays" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }