Anomalies and the Eve effect in the asexual Penna model
| Autor: | T. Preece, Yong Mao |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Models
Statistical Models Genetic Population Dynamics Genetic Variation Binary number Mutation Accumulation Biological Evolution Reproduction Asexual Computer Simulation Evolutionary ecology Genomic information Statistical physics Selection Genetic Anomaly (physics) Artifacts Selection (genetic algorithm) Mathematics Demography |
| Zdroj: | Physical Review E. 74 |
| ISSN: | 1550-2376 1539-3755 |
| Popis: | The Penna model of evolutionary ageing is an influential model of mutation accumulation and selection, where an individual's genomic information is represented by a binary bit string. One key parameter of the model is the death threshold, T, the number of diseases any particular individual is able to endure. We show, by combined computer simulations and analytical formulation, that certain anomalies emerge in the asexual Penna model for T>1, which may lead to the so-called Eve effect. We characterize these anomalies and their associated demographic distributions. We argue that this anomaly is similar in nature to the well known first-passage problem. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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