An Efficient Method for DNA-Based Species Assignment via Gene Tree and Species Tree Reconciliation

  • Louxin Zhang
  • Yun Cui
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6293)


DNA-based species assignment and delimitation are two important problems in systematic biology. In a recent work of O’Meara, species delimitation is investigated through coupling it with species tree inference in the framework of gene tree and species tree reconciliation. We present a polynomial time algorithm for splitting individuals into species to minimize the deep coalescence cost of the gene tree and species tree reconciliation, a species assignment problem arises from species delimitation via gene tree and species tree reconciliation. How to incorporate this proposed algorithm into the heuristic search strategy of O’Meara for species delimitation is also discussed. The proposed algorithm is implemented in C++.


DNA barcoding species delimitation gene tree and species tree reconciliation deep coalescence dene duplication and loss 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Louxin Zhang
    • 1
  • Yun Cui
    • 1
  1. 1.Department of MathematicsNational University of SingaporeSingapore

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