title: Evolvable self-reproducing cells in a two-dimensional artificial chemistry.
abstract: We present a novel unit of evolution: a self-reproducing cell in a two-dimensional artificial chemistry. The cells have a strip of genetic material that is used to produce enzymes, each catalyzing a specific reaction that may affect the survival of the cell. The enzymes are kept inside the cell by a loop of membrane, thus ensuring that only the cell that produced them gets their benefit. A set of reaction rules, each simple and local, allows the cells to copy their genetic information and physically divide. The evolutionary possibilities of the cells are explored, and it is suggested that the system provides a useful framework for testing hypotheses about self-driven evolution.
authors.affiliation: Department of Computer Science, University College London, UK. tim.hutton@gmail.com
authors.forename: Tim J
authors.initials: TJ
authors.lastname: Hutton
mesh_terms: D005075:Biological Evolution; D002462:Cell Membrane / Q000235:genetics; D049109:Cell Proliferation; D002470:Cell Survival / Q000235:genetics; D002477:Cells / Q000737:chemistry*; D055598:Chemical Phenomena; D002621:Chemistry; D004798:Enzymes / Q000235:genetics / Q000502:physiology; D005813:Genes, Synthetic; D008954:Models, Biological; D000069497:Origin of Life
chemical_list: D004798:Enzymes