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Quantitative Biology > Populations and Evolution

arXiv:q-bio/0511044 (q-bio)
[Submitted on 28 Nov 2005]

Title:Quasi-Species and Aggregate Dynamics

Authors:Anders Eriksson, Olof Görnerup, Martin Nilsson Jacobi, Steen Rasmussen
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Abstract: At an early stage in pre-biotic evolution, groups of replicating molecules must coordinate their reproduction to form aggregated units of selection. Mechanisms that enable this to occur are currently not well understood. In this paper we introduce a deterministic model of primitive replicating aggregates, proto-organisms, that host populations of replicating information carrying molecules. Some of the molecules promote the reproduction of the proto-organism at the cost of their individual replication rate. A situation resembling that of group selection arises. We derive and analytically solve a partial differential equation that describes the system. We find that the relative prevalence of fast and slow replicators is determined by the relative strength of selection at the aggregate level to the selection strength at the molecular level. The analysis is concluded by a preliminary treatment of finite population size effects.
Comments: 6 pages
Subjects: Populations and Evolution (q-bio.PE)
Cite as: arXiv:q-bio/0511044 [q-bio.PE]
  (or arXiv:q-bio/0511044v1 [q-bio.PE] for this version)
  https://doi.org/10.48550/arXiv.q-bio/0511044

Submission history

From: Martin Jacobi N [view email]
[v1] Mon, 28 Nov 2005 16:25:45 UTC (63 KB)
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