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arXiv · 2101.10080

Selection, recombination, and the ancestral initiation graph

Frederic Alberti·Carolin Herrmann·Ellen Baake
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Abstract

Recently, the selection-recombination equation with a single selected site and an arbitrary number of neutral sites was solved by means of the ancestral selection-recombination graph. Here, we introduce a more accessible approach, namely the ancestral initiation graph. The construction is based on a discretisation of the selection-recombination equation. We apply our method to systematically explain a long-standing observation concerning the dynamics of linkage disequilibrium between two neutral loci hitchhiking along with a selected one. In particular, this clarifies the nontrivial dependence on the position of the selected site.

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Frederic Alberti, Carolin Herrmann, Ellen Baake. 2021-01-25. Selection, recombination, and the ancestral initiation graph. https://arxiv.org/abs/2101.10080

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