Journal of Mathematical Biology

, Volume 51, Issue 2, pp 171–182 | Cite as

Bounding the Number of Hybridisation Events for a Consistent Evolutionary History

  • Mihaela Baroni
  • Stefan Grünewald
  • Vincent Moulton
  • Charles Semple
Article

Abstract.

Evolutionary processes such as hybridisation, lateral gene transfer, and recombination are all key factors in shaping the structure of genes and genomes. However, since such processes are not always best represented by trees, there is now considerable interest in using more general networks instead. For example, in recent studies it has been shown that networks can be used to provide lower bounds on the number of recombination events and also for the number of lateral gene transfers that took place in the evolutionary history of a set of molecular sequences. In this paper we describe the theoretical performance of some related bounds that result when merging pairs of trees into networks.

Key words or phrases

Phylogenetic tree Phylogentic network Hybrid network Recombination Lateral gene transfer Hybridisation 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Mihaela Baroni
    • 1
  • Stefan Grünewald
    • 1
  • Vincent Moulton
    • 2
  • Charles Semple
    • 1
  1. 1.Biomathematics Research Centre, Department of Mathematics and StatisticsUniversity of CanterburyChristchurchNew Zealand
  2. 2.School of Computing SciencesUniversity of East AngliaNorwichUK

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