Tree-based unrooted nonbinary phylogenetic networks
نویسندگان
چکیده
منابع مشابه
Tree-Based Unrooted Nonbinary Phylogenetic Networks
Phylogenetic networks are a generalisation of phylogenetic trees that allow for more complex evolutionary histories that include hybridisation-like processes. It is of considerable interest whether a network can be considered ‘tree-like’ or not, which lead to the introduction of tree-based networks in the rooted, binary context. Tree-based networks are those networks which can be constructed by...
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Phylogenetic networks are a generalization of phylogenetic trees that are used to represent non-tree-like evolutionary histories that arise in organisms such as plants and bacteria, or uncertainty in evolutionary histories. An unrooted phylogenetic network on a non-empty, finite set X of taxa, or network, is a connected, simple graph in which every vertex has degree 1 or 3 and whose leaf set is...
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Phylogenetic networks were introduced to describe evolution in the presence of exchanges of genetic material between coexisting species or individuals. Split networks in particular were introduced as a special kind of abstract network to visualize conflicts between phylogenetic trees which may correspond to such exchanges. More recently, methods were designed to reconstruct explicit phylogeneti...
متن کاملOn Tree-Based Phylogenetic Networks
A large class of phylogenetic networks can be obtained from trees by the addition of horizontal edges between the tree edges. These networks are called tree-based networks. We present a simple necessary and sufficient condition for tree-based networks and prove that a universal tree-based network exists for any number of taxa that contains as its base every phylogenetic tree on the same set of ...
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Phylogenetic networks generalise phylogenetic trees and allow for the accurate representation of the evolutionary history of a set of present-day species whose past includes reticulate events such as hybridisation and lateral gene transfer. One way to obtain such a network is by starting with a (rooted) phylogenetic tree T , called a base tree, and adding arcs between arcs of T . The class of p...
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ژورنال
عنوان ژورنال: Mathematical Biosciences
سال: 2018
ISSN: 0025-5564
DOI: 10.1016/j.mbs.2018.06.005