Cited by 19Origins and Evolution of LifeEvolution and Genetic DynamicsRNA and protein synthesis mechanisms

The information capacity of hypercycles

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Silvestre, Daniel A.M.M., Fontanari, José F.·2008·Journal of Theoretical Biology

Abstract

Hypercycles are information integration systems which are thought to overcome the information crisis of prebiotic evolution by ensuring the coexistence of several short templates. For imperfect template replication, we derive a simple expression for the maximum number of distinct templates n(m) that can coexist in a hypercycle and show that it is a decreasing function of the length L of the templates. In the case of high replication accuracy we find that the product n(m)L tends to a constant value, limiting thus the information content of the hypercycle. Template coexistence is achieved either as a stationary equilibrium (stable fixed point) or a stable periodic orbit in which the total concentration of functional templates is nonzero. For the hypercycle system studied here we find numerical evidence that the existence of an unstable fixed point is a necessary condition for the presence of periodic orbits.

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Crossref · 10.1016/j.jtbi.2008.07.023

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Authors
Silvestre, D. A. M. M., & Fontanari, J. F.
Affiliations
Universidade de São Paulo (BR)
Venue
Journal of Theoretical Biology
Publisher
Elsevier BV
Published
2008-10
Volume
254
Issue
4
Pages
804-806
ISSN
0022-5193 (ISSN-L)
OpenAlex
W2963382137
Cited by
19
References
18
Citations by year
2024: 2 · 2021: 1 · 2020: 2 · 2018: 3 · 2017: 2 · 2016: 1 · 2015: 2 · 2014: 1 · 2012: 1
FWCI
0.78
Type
journal article
Language
en
Open access
Locations
  • Journal of Theoretical Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Scientific Electronic Library Online (São Paulo Research Foundation, Latin American and Caribbean Center on Health Sciences Information, Conselho Nacional de Desenvolvimento Científico e Tecnológico) (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Origins and Evolution of Life
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Evolution and Genetic Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
Keywords
hypercycles, information capacity, prebiotic evolution, replication accuracy, information crisis, periodic orbits, unstable fixed points, information integration
MeSH terms
Animals, DNA Replication, Models, Genetic, Mutation, RNA, Templates, Genetic, Models, Statistical

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