Computing a Relevant Set of Nonbinary Maximum Acyclic Agreement Forests
نویسنده
چکیده
There exist several methods dealing with the reconstruction of rooted phylogenetic networks explaining different evolutionary histories given by rooted binary phylogenetic trees. In practice, however, due to insufficient information of the underlying data, phylogenetic trees are in general not completely resolved and, thus, those methods can often not be applied to biological data. In this work, we make a first important step to approach this goal by presenting the first algorithm — called allMulMAAFs — that enables the computation of all relevant nonbinary maximum acyclic agreement forests for two rooted (nonbinary) phylogenetic trees on the same set of taxa. Notice that our algorithm is part of the freely available software Hybroscale computing minimum hybridization networks for a set of rooted (nonbinary) phylogenetic trees on an overlapping set of taxa.
منابع مشابه
Approximation Algorithms for Nonbinary Agreement Forests
Given two rooted phylogenetic trees on the same set of taxa X, the Maximum Agreement Forest problem (MAF) asks to find a forest that is, in a certain sense, common to both trees and has a minimum number of components. The Maximum Acyclic Agreement Forest problem (MAAF) has the additional restriction that the components of the forest cannot have conflicting ancestral relations in the input trees...
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It is a known fact that given two rooted binary phylogenetic trees the concept of maximum acyclic agreement forests is sufficient to compute hybridization networks with minimum hybridization number. In this work we demonstrate by, first, presenting an algorithm and, second, showing its correctness that this concept is also sufficient in the case of multiple input trees. In detail, we show that ...
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MOTIVATIONS When reticulation events occur, the evolutionary history of a set of existing species can be represented by a hybridization network instead of an evolutionary tree. When studying the evolutionary history of a set of existing species, one can obtain a phylogenetic tree of the set of species with high confidence by looking at a segment of sequences or a set of genes. When looking at a...
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عنوان ژورنال:
- CoRR
دوره abs/1512.05703 شماره
صفحات -
تاریخ انتشار 2015