Computing the Internode Certainty and Related Measures from Partial Gene Trees.

Kobert K, Salichos L, Rokas A, Stamatakis A
Mol Biol Evol. 2016 33 (6): 1606-17

PMID: 26915959 · PMCID: PMC4868120 · DOI:10.1093/molbev/msw040

We present, implement, and evaluate an approach to calculate the internode certainty (IC) and tree certainty (TC) on a given reference tree from a collection of partial gene trees. Previously, the calculation of these values was only possible from a collection of gene trees with exactly the same taxon set as the reference tree. An application to sets of partial gene trees requires mathematical corrections in the IC and TC calculations. We implement our methods in RAxML and test them on empirical datasets. These tests imply that the inclusion of partial trees does matter. However, in order to provide meaningful measurements, any dataset should also include trees containing the full species set.

© The Author 2016. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

MeSH Terms (4)

Computational Biology Evolution, Molecular Models, Genetic Phylogeny

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