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A fundamental problem in the study of phylogenetic networks is to determine whether or not a given phylogenetic network contains a given phylogenetic tree. We develop a quadratic-time algorithm for this problem for binary nearly-stable phylogenetic networks. We also show that the number of reticulations in a reticulation visible or nearly stable… (More)

- Andreas D. M. Gunawan, Bhaskar DasGupta, Louxin Zhang
- ArXiv
- 2016

In phylogenetics, phylogenetic trees are rooted binary trees, whereas phylogenetic networks are rooted arbitrary acyclic digraphs. Edges are directed away from the root and leaves are uniquely labeled with taxa in phylogenetic networks. For the purpose of validating evolutionary models, biologists check whether or not a phylogenetic tree is contained in a… (More)

- Andreas D. M. Gunawan, Bingxin Lu, Louxin Zhang
- Bioinformatics
- 2016

MOTIVATION
Genetic material is transferred in a non-reproductive manner across species more frequently than commonly thought, particularly in the bacteria kingdom. On one hand, extant genomes are thus more properly considered as a fusion product of both reproductive and non-reproductive genetic transfers. This has motivated researchers to adopt phylogenetic… (More)

- Andreas D. M. Gunawan, Louxin Zhang
- ArXiv
- 2015

Phylogenetic networks are mathematical structures for modeling and visualization of reticulation processes in the study of evolution. Galled networks, reticulation visible networks, nearly-stable networks and stable-child networks are the four classes of phylogenetic networks that are recently introduced to study the topological and algorithmic aspects of… (More)

- Andreas D. M. Gunawan, Bhaskar DasGupta, Louxin Zhang
- Inf. Comput.
- 2017

- Andreas D. M. Gunawan, Bhaskar DasGupta, Louxin Zhang
- ArXiv
- 2015

In this work, we answer an open problem in the study of phylogenetic networks. Phylogenetic trees are rooted binary trees in which all edges are directed away from the root, whereas phylo-genetic networks are rooted acyclic digraphs. For the purpose of evolutionary model validation, biologists often want to know whether or not a phylogenetic tree is… (More)

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