Please use this identifier to cite or link to this item:http://hdl.handle.net/20.500.12105/19941
Title
The Comparison of Tree-Sibling Time Consistent Phylogenetic Networks Is Graph Isomorphism-Complete
Author(s)
Date issued
2014
Citation
Cardona G, Llabres Segura M, Rossello F, Valiente G. The Comparison of Tree-Sibling Time Consistent Phylogenetic Networks Is Graph Isomorphism-Complete. Sci World J. 2014;:254279. Epub 2014 Apr 2.
Language
Inglés
Document type
research article
Abstract
Several polynomial time computable metrics on the class of semibinary tree-sibling time consistent phylogenetic networks are available in the literature; in particular, the problem of deciding if two networks of this kind are isomorphic is in P. In this paper, we show that if we remove the semibinarity condition, then the problem becomes much harder. More precisely, we prove that the isomorphism problem for generic tree-sibling time consistent phylogenetic networks is polynomially equivalent to the graph isomorphism problem. Since the latter is believed not to belong to P, the chances are that it is impossible to define a metric on the class of all tree-sibling time consistent phylogenetic networks that can be computed in polynomial time.
MESH
DECS
Filogenia | Humanos | Algoritmos | Biología Computacional
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