FCCC LOGO Faculty Publications
Katsura Y , Stanley CE Jr , Kumar S , Nei M
The Reliability and Stability of an Inferred Phylogenetic Tree from Empirical Data
Mol Biol Evol. 2017 Mar 1;34(3) :718-723
PMID: 28100791    PMCID: PMC5850655    URL: https://www.ncbi.nlm.nih.gov/pubmed/28100791
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The reliability of a phylogenetic tree obtained from empirical data is usually measured by the bootstrap probability (Pb) of interior branches of the tree. If the bootstrap probability is high for most branches, the tree is considered to be reliable. If some interior branches show relatively low bootstrap probabilities, we are not sure that the inferred tree is really reliable. Here, we propose another quantity measuring the reliability of the tree called the stability of a subtree. This quantity refers to the probability of obtaining a subtree (Ps) of an inferred tree obtained. We then show that if the tree is to be reliable, both Pb and Ps must be high. We also show that Ps is given by a bootstrap probability of the subtree with the closest outgroup sequence, and computer program RESTA for computing the Pb and Ps values will be presented.
1537-1719 Katsura, Yukako Stanley, Craig E Jr Kumar, Sudhir Nei, Masatoshi Journal Article United States Mol Biol Evol. 2017 Mar 1;34(3):718-723. doi: 10.1093/molbev/msw272.