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    Mol Biol Evol. 1991 Jan;8(1):128-43.

    Methods for inferring phylogenies from nucleic acid sequence data by using maximum likelihood and linear invariants.

    Source

    Department of Mathematics, University of Southern California, Los Angeles 90089-1113.

    Abstract

    Likelihood methods and methods using invariants are procedures for inferring the evolutionary relationships among species through statistical analysis of nucleic acid sequences. A likelihood-ratio test may be used to determine the feasibility of any tree for which the maximum likelihood can be computed. The method of linear invariants described by Cavender, which includes Lake's method of evolutionary parsimony as a special case, is essentially a form of the likelihood-ratio method. In the case of a small number of species (four or five), these methods may be used to find a confidence set for the correct tree. An exact version of Lake's asymptotic chi 2 test has been mentioned by Holmquist et al. Under very general assumptions, a one-sided exact test is appropriate, which greatly increases power.

    PMID:
    2002762
    [PubMed - indexed for MEDLINE]

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