Ecology and Evolution in the RNA World Dynamics and Stability of Prebiotic Replicator Systems

摘要: As of today, the most credible scientific paradigm pertaining to origin life on Earth is undoubtedly RNA World scenario. It built assumption that catalytically active replicators (most probably RNA-like macromolecules) may have been responsible for booting up almost four billion years ago. The many different incarnations nucleotide sequence (string) replicator models proposed recently are all attempts explain this basis how genetic information transfer and functional diversity prebiotic systems emerged, persisted evolved into first living cell. We postulated three necessary conditions an model system be a dynamically feasible representation chemical evolution: (1) it must maintain sufficient reliably indefinitely, (2) ecologically stable (3) evolutionarily stable. In review, we discuss best-known scenarios corresponding string-replicator dynamics assess them against these criteria. suggest popular systems, hypercycle, worst performer in respects, whereas few other concepts (parabolic replicator, open chaotic flows, stochastic corrector, metabolically coupled system) promising candidates development coherent become experimentally accessible future.