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arXiv · 1708.09691

Visualizing Co-Phylogenetic Reconciliations

Tiziana Calamoneri·Valentino Di Donato·Diego Mariottini·Maurizio Patrignani
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Abstract

We introduce a hybrid metaphor for the visualization of the reconciliations of co-phylogenetic trees, that are mappings among the nodes of two trees. The typical application is the visualization of the co-evolution of hosts and parasites in biology. Our strategy combines a space-filling and a node-link approach. Differently from traditional methods, it guarantees an unambiguous and `downward' representation whenever the reconciliation is time-consistent (i.e., meaningful). We address the problem of the minimization of the number of crossings in the representation, by giving a characterization of planar instances and by establishing the complexity of the problem. Finally, we propose heuristics for computing representations with few crossings.

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Tiziana Calamoneri, Valentino Di Donato, Diego Mariottini, Maurizio Patrignani. 2017-08-31. Visualizing Co-Phylogenetic Reconciliations. https://arxiv.org/abs/1708.09691

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