Polytomies in comparative analyses of continuous characters

A Purvis, T Garland - Systematic Biology, 1993 - JSTOR
… advocated that the polytomy be resolved arbitrarily into a … analysis will depend on how the
polytomy is resolved; a node with … possible resolutions of a three-way polytomy, the plot of the …

A simple polytomy resolver for dated phylogenies

TS Kuhn, AØ Mooers… - Methods in Ecology and …, 2011 - Wiley Online Library
… Here, we present a simple approach to polytomy resolution, using biologically relevant … and
r, we present a semi‐automated ‘polytomy resolver’ capable of providing a distribution of tree …

The phylogenomic forest of bird trees contains a hard polytomy at the root of Neoaves

A Suh - Zoologica Scripta, 2016 - Wiley Online Library
… Such a hard polytomy of nine taxa translates into 2 027 025 … regarding the early neoavian
polytomy. I further caution against … The early neoavian polytomy coincides with the Cretaceous–…

The optimal rate for resolving a near-polytomy in a phylogeny

M Steel, C Leuenberger - Journal of theoretical biology, 2017 - Elsevier
The reconstruction of phylogenetic trees from discrete character data typically relies on models
that assume the characters evolve under a continuous-time Markov process operating at …

Problems with “soft” polytomies

JA Coddington, N Scharff - Cladistics, 1996 - Elsevier
… In our experience most systematists do not prefer the hard polytomy interpretation for their
work, despite the theoretical possibility of simultaneous cladogenesis. The possibility of more …

Polytomies and the power of phylogenetic inference

HE Walsh, MG Kidd, T Moum, VL Friesen - Evolution, 1999 - Wiley Online Library
Although phylogenetic hypotheses can provide insights into mechanisms of evolution, their
utility is limited by our inability to differentiate simultaneous speciation events (hard …

Polytomy identification in microbial phylogenetic reconstruction

GN Lin, C Zhang, D Xu - BMC systems biology, 2011 - Springer
Background A phylogenetic tree, showing ancestral relations among organisms, is commonly
represented as a rooted tree with sets of bifurcating branches (dichotomies) for simplicity, …

No substitute for real data: a cautionary note on the use of phylogenies from birth–death polytomy resolvers for downstream comparative analyses

DL Rabosky - Evolution, 2015 - academic.oup.com
… The birth–death polytomy resolver is a method of accounting for phylogenetic uncertainty …
respect to trait values, the birth–death polytomy resolver breaks down natural patterns of trait …

Effect of Polytomy on the Parameter Estimation and Goodness of Fit of Phylogenetic Linear Regression Models for Trait Evolution

DC Jhwueng, FC Liu - Diversity, 2022 - mdpi.com
polytomy trees, where the relationships within a particular clade of species are more/less
certainly determined (hard/soft polytomy… It is found that, although polytomy does not significantly …

Revisited phylogeny of Bethylinae (Hymenoptera, Bethylidae) solves basal polytomy

MS Ramos, CO Azevedo - Insect Systematics & Evolution, 2020 - brill.com
… In summary, the basal polytomy was solved for the first time. Seven of the eight genera were
recovered as monophyletic groups. The unique exception is Goniozus , which was retrieved …