Chapter

Algorithms and Data Structures

Volume 1663 of the series Lecture Notes in Computer Science pp 288-293

Date:

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

  • Ulrike StegeAffiliated withCBRG, Department of Computer Science

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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.