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Phylogenetic networks from multi-labelled trees

Abstract

It is now quite well accepted that the evolutionary past of certain species is better represented by phylogenetic networks as opposed to trees. For example, polyploids are typically thought to have resulted through hybridization and duplication, processes that are probably not best represented as bifurcating speciation events. Based on the knowledge of a multi-labelled tree relating collection of polyploids, we present a canonical construction of a phylogenetic network that exhibits the tree. In addition, we prove that the resulting network is in some well-defined sense a minimal network having this property.

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Correspondence to K.T. Huber.

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Huber, K., Moulton, V. Phylogenetic networks from multi-labelled trees. J. Math. Biol. 52, 613–632 (2006) doi:10.1007/s00285-005-0365-z

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Keywords or phrases

  • Phylogenetic network
  • Multi-labelled tree
  • Multigraph
  • Hybridization
  • Polyploidy