Cited by 17Origins and Evolution of LifeEvolution and Genetic DynamicsRNA and protein synthesis mechanisms

Gause's Principle and the Effect of Resource Partitioning on the Dynamical Coexistence of Replicating Templates

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Szilágyi, András, Zachar, István, Szathmáry, Eörs·2013·PLoS Computational Biology

Abstract

Models of competitive template replication, although basic for replicator dynamics and primordial evolution, have not yet taken different sequences explicitly into account, neither have they analyzed the effect of resource partitioning (feeding on different resources) on coexistence. Here we show by analytical and numerical calculations that Gause's principle of competitive exclusion holds for template replicators if resources (nucleotides) affect growth linearly and coexistence is at fixed point attractors. Cases of complementary or homologous pairing between building blocks with parallel or antiparallel strands show no deviation from the rule that the nucleotide compositions of stably coexisting species must be different and there cannot be more coexisting replicator species than nucleotide types. Besides this overlooked mechanism of template coexistence we show also that interesting sequence effects prevail as parts of sequences that are copied earlier affect coexistence more strongly due to the higher concentration of the corresponding replication intermediates. Template and copy always count as one species due their constraint of strict stoichiometric coupling. Stability of fixed-point coexistence tends to decrease with the length of sequences, although this effect is unlikely to be detrimental for sequences below 100 nucleotides. In sum, resource partitioning (niche differentiation) is the default form of competitive coexistence for replicating templates feeding on a cocktail of different nucleotides, as it may have been the case in the RNA world. Our analysis of different pairing and strand orientation schemes is relevant for artificial and potentially astrobiological genetics.

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  1. [5]Spiegelman S (1970) Extracellular evolution of replicating molecules, New York: Rockefeller University Press. pp. 927–945.
  2. [10]von Kiedrowski G (1986) A self-replicating hexadeoxy nucleotide. Angewandte Chemie International Edition in English 25: 932– 935.
  3. [27]Hindmarsh AC, Brown PN, Grant KE, Lee SL, Serban R, et al (2005) SUNDIALS: Suite of Nonlinear and Differential/Algebraic Equation Solvers. ACM Transactions on Mathematical Software 31: 363– 396.

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Authors
Szilágyi, A., Zachar, I., & Szathmáry, E.
Affiliations
  • Eötvös Loránd University (HU)
  • Parmenides Foundation (DE)
Corresponding author
Szathmáry, Eörs
Venue
PLoS Computational Biology
Published
2013-08-22
Volume
9
Issue
8
Pages
e1003193
ISSN
  • 1553-734X (ISSN-L)
  • 1553-7358
OpenAlex
W2080813513
Cited by
17
References
27
Citations by year
2024: 5 · 2023: 1 · 2021: 2 · 2020: 1 · 2019: 2 · 2018: 1 · 2017: 2 · 2015: 2 · 2014: 1
FWCI
0.54
Type
journal article
Language
en
Open access
Locations
  • PLoS Computational Biology (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • ELTE Digital Institutional Repository (EDIT) (Eötvös Loránd University) (submittedVersion, other-oa)
  • Figshare (submittedVersion, cc-by)
Funders
  • Nemzeti Kutatási és Technológiai Hivatal (KCKHA005, NAP 2005/KCKHA005)
  • FP7 Ideas: European Research Council (294332)
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
template replication, resource partitioning, niche differentiation, fixed-point attractors, nucleotide composition, RNA world, order effects, strand orientation, replication intermediates, sequence length
MeSH terms
Computer Simulation, Gene Expression Regulation, Interleukin-3, Models, Genetic, Monte Carlo Method, Recombinant Fusion Proteins, RNA, Messenger, Stochastic Processes, Models, Statistical, Cluster Analysis, Granulocyte Colony-Stimulating Factor, Computational Biology, GATA2 Transcription Factor

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