On mechanisms of neutral evolution of DNA resulting in scale-free behaviour

M. V. Koroteev; P. V. Baranov

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arXiv · 1507.02336

On mechanisms of neutral evolution of DNA resulting in scale-free behaviour

M. V. Koroteev·P. V. Baranov

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Abstract

We introduce a family of models incorporating random segmental substitutions and point mutations and demonstrate that such models reproduce algebraic length distributions of exact matches with the slope $-4$ observed earlier in pairwise comparisons of DNA of distantly related species. It is demonstrated that power-law distributions of exact matches emerge when shorter sequences transfer their DNA content to longer sequences, indicating potential mechanisms of the increased genome complexity.

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M. V. Koroteev, P. V. Baranov. 2015-07-08. On mechanisms of neutral evolution of DNA resulting in scale-free behaviour. https://arxiv.org/abs/1507.02336

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