Gene Trees and Species Trees: The Gene-Duplication Problem in Fixed-Parameter Tractable

  • Authors:
  • Ulrike Stege

  • Affiliations:
  • -

  • Venue:
  • WADS '99 Proceedings of the 6th International Workshop on Algorithms and Data Structures
  • Year:
  • 1999

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Abstract

GENE DUPLICATION is the problem of computing an optimal species tree for a given set of gene trees under the GENE DUPLICATION Model (first introduced by Goodman et al.). The problem is known to be NP-complete. We give a fixed-parameter-tractable algorithm solving the problem parameterized by the number of gene duplications necessary to rectify the gene trees with respect to the species tree.