Journal
JOURNAL OF MOLECULAR EVOLUTION
Volume 51, Issue 1, Pages 41-47Publisher
SPRINGER VERLAG
DOI: 10.1007/s002390010065
Keywords
phylogenetic trees; distance matrix; minimum-evolution method; least square estimates; cetacean phylogeny; tree rooting
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Comparative studies of tree-building methods have shown minimum evolution to be in general an accurate criterion fur selecting a true tree. To improve the use of this criterion, this paper proposes a method for rapidly and directly calculating a length of a dichotomous tree without having to resort to branch length calculations. This direct calculation (DC) method applies to the complete final topology, giving equal importance to each branch after a dichotomy. According to this method, the tree length S-DC is S-DC = Sigma(i)Sigma(j)(D-ij/2B(ij)) = (Sigma(i
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