title: Scale-free networks in biology: new insights into the fundamentals of evolution?
abstract: Scale-free network models describe many natural and social phenomena. In particular, networks of interacting components of a living cell were shown to possess scale-free properties. A recent study((1)) compares the system-level properties of metabolic and information networks in 43 archaeal, bacterial and eukaryal species and claims that the scale-free organization of these networks is more conserved during evolution than their content.
authors.affiliation: National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA.
authors.forename: Yuri I
authors.initials: YI
authors.lastname: Wolf
authors.forename: Georgy
authors.initials: G
authors.lastname: Karev
authors.forename: Eugene V
authors.initials: EV
authors.lastname: Koonin
mesh_terms: D001105:Archaea / Q000502:physiology*; D018407:Bacterial Physiological Phenomena; D005075:Biological Evolution; D005057:Eukaryotic Cells / Q000502:physiology*; D008954:Models, Biological