A unifying view on approximation and FPT of agreement forests

  • Authors:
  • Chris Whidden;Norbert Zeh

  • Affiliations:
  • Faculty of Computer Science, Dalhousie University, Halifax, Nova Scotia, Canada;Faculty of Computer Science, Dalhousie University, Halifax, Nova Scotia, Canada

  • Venue:
  • WABI'09 Proceedings of the 9th international conference on Algorithms in bioinformatics
  • Year:
  • 2009

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Abstract

We provide a unifying view on the structure of maximum (acyclic) agreement forests of rooted and unrooted phylogenies. This enables us to obtain linear- or O(n log n)-time 3-approximation and improved fixed-parameter algorithms for the subtree prune and regraft distance between two rooted phylogenies, the tree bisection and reconnection distance between two unrooted phylogenies, and the hybridization number of two rooted phylogenies.