Testing for Polytomies in Phylogenetic Species Trees Using Quartet Frequencies
Erfan Sayyari; Siavash Mirarab · 2018 · Genes
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract
Phylogenetic species trees typically represent the speciation history as a bifurcating tree. Speciation events that simultaneously create more than two descendants, thereby creating polytomies in the phylogeny, are possible. Moreover, the inability to resolve relationships is often shown as a (soft) polytomy. Both types of polytomies have been traditionally studied in the context of gene tree reconstruction from sequence data. However, polytomies in the species tree cannot be detected or ruled out without considering gene tree discordance. In this paper, we describe a statistical test based on
Abstract by Erfan Sayyari; Siavash Mirarab, Genes (2018) — licensed CC BY 4.0.
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Metadata source: OpenAlex · DOI 10.3390/genes9030132