Taxonomic sampling and rare genomic changes overcome long-branch attraction in the phylogenetic placement of pseudoscorpions

Andrew Ontano, Guilherme Gainett, Shlomi Aharon, Jesús Balesteros, Ligia Benavides, Kevin Corbett, Efrat Gavish-Regev, Mark Harvey, Scott Monsma, Carlos Santibáñez-López, Emily Setton, Jakob Zehms, Jeanne Zeh, David Zeh & Prashant Sharma
Long-branch attraction is a systematic artifact that results in erroneous groupings of fast-evolving taxa. The combination of short, deep internodes in tandem with LBA artifacts has produced empirically intractable parts of the Tree of Life. One such group is the arthropod subphylum Chelicerata, whose backbone phylogeny has remained unstable despite improvements in phylogenetic methods and genome-scale datasets. Pseudoscorpion placement is particularly variable across datasets and analytical frameworks, with this group either clustering with other long-branch...
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