ArticleBioinformatics (Oxford, England)2019
Choice of species affects phylogenetic stability of deep nodes: an empirical example in Terrabacteria.
Article in Bioinformatics (Oxford, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Molecular evolution of the Wood-Ljungdahl pathway and the reductive glycine pathway inFrontiers in microbiology · 2025Article
- Testing Phylogenetic Stability with Variable Taxon Sampling.Methods in molecular biology (Clifton, N.J.) · 2022Article
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4 authors.
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Abstract
motivationThe promise of higher phylogenetic stability through increased dataset sizes within tree of life (TOL) reconstructions has not been fulfilled. Among the many possible causes are changes in species composition (taxon sampling) that could influence phylogenetic accuracy of the methods by altering the relative weight of the evolutionary histories of each individual species. This effect would be stronger in clades that are represented by few lineages, which is common in many prokaryote phyla. Indeed, phyla with fewer taxa showed the most discordance among recent TOL studies. We implemented an approach to systematically test how the identity of taxa among a larger dataset and the number of taxa included affected the accuracy of phylogenetic reconstruction.
resultsUtilizing an empirical dataset within Terrabacteria we found that even within scenarios consisting of the same number of taxa, the species used strongly affected phylogenetic stability. Furthermore, we found that trees with fewer species were more dissimilar to the tree produced from the full dataset. These results hold even when the tree is composed by many phyla and only one of them is being altered. Thus, the effect of taxon sampling in one group does not seem to be buffered by the presence of many other clades, making this issue relevant even to very large datasets. Our results suggest that a systematic evaluation of phylogenetic stability through taxon resampling is advisable even for very large datasets. AVAILABILITY AND IMPLEMENTATION: https://github.com/BlabOaklandU/PATS.git. SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online.
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