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Chapitre D'ouvrage Année : 2017

Repetition and Reversibility in Evolution: Theoretical Population Genetics

Résumé

Repetitiveness and reversibility have long been considered as characteristic features of scientific knowledge. In theoretical population genetics, repetitiveness is illustrated by a number of genetic equilibria realized under specific conditions. Since these equilibria are maintained despite a continual flux of changes in the course of generations (reshuffling of genes, reproduction…), it can legitimately be said that population genetics reveals important properties of invariance through transformation. Time-reversibility is a more controversial subject. Here, the parallel with classical mechanics is much weaker. Time-reversibility is unquestionable in some stochastic models, but at the cost of a special, probabilistic concept of reversibility. But it does not seem to be a property of the most basic deterministic models describing the dynamics of evolutionary change at the level of populations and genes. Furthermore, various meanings of ‗reversibility' are distinguished. In particular, time-reversibility should not be confused with retrodictability.
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Dates et versions

hal-02398766 , version 1 (08-12-2019)

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Jean Gayon, Maël Montévil. Repetition and Reversibility in Evolution: Theoretical Population Genetics. Time in nature and the nature of time, pp.275-314, 2017, ⟨10.1007/978-3-319-53725-2_13⟩. ⟨hal-02398766⟩
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