ArticleBMC evolutionary biology2020
Four myriapod relatives - but who are sisters? No end to debates on relationships among the four major myriapod subgroups.
Article in BMC evolutionary biology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Unraveling myriapod evolution: sealion, a novel quartet-based approach for evaluating phylogenetic uncertainty.NAR genomics and bioinformatics · 2025Article
- Arthropod Phylotranscriptomics With a Special Focus on the Basal Phylogeny of the Myriapoda.Genome biology and evolution · 2024Article
- Genetic diversity varies with species traits and latitude in predatory soil arthropods (Myriapoda: Chilopoda).Global ecology and biogeography : a journal of macroecology · 2023Article
- Review
- Article
- Transcriptomics provides a robust framework for the relationships of the major clades of cladobranch sea slugs (Mollusca, Gastropoda, Heterobranchia), but fails to resolve the position of the enigmatic genus Embletonia.BMC ecology and evolution · 2021Article
- Phylogenomic Subsampling and the Search for Phylogenetically Reliable Loci.Molecular biology and evolution · 2021Article
- Reinvestigating the phylogeny of Myriapoda with more extensive taxon sampling and novel genetic perspective.PeerJ · 2021Article
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Authors and funding
22 authors.
Funding
Abstract
backgroundPhylogenetic relationships among the myriapod subgroups Chilopoda, Diplopoda, Symphyla and Pauropoda are still not robustly resolved. The first phylogenomic study covering all subgroups resolved phylogenetic relationships congruently to morphological evidence but is in conflict with most previously published phylogenetic trees based on diverse molecular data. Outgroup choice and long-branch attraction effects were stated as possible explanations for these incongruencies. In this study, we addressed these issues by extending the myriapod and outgroup taxon sampling using transcriptome data.
resultsWe generated new transcriptome data of 42 panarthropod species, including all four myriapod subgroups and additional outgroup taxa. Our taxon sampling was complemented by published transcriptome and genome data resulting in a supermatrix covering 59 species. We compiled two data sets, the first with a full coverage of genes per species (292 single-copy protein-coding genes), the second with a less stringent coverage (988 genes). We inferred phylogenetic relationships among myriapods using different data types, tree inference, and quartet computation approaches. Our results unambiguously support monophyletic Mandibulata and Myriapoda. Our analyses clearly showed that there is strong signal for a single unrooted topology, but a sensitivity of the position of the internal root on the choice of outgroups. However, we observe strong evidence for a clade Pauropoda+Symphyla, as well as for a clade Chilopoda+Diplopoda.
conclusionsOur best quartet topology is incongruent with current morphological phylogenies which were supported in another phylogenomic study. AU tests and quartet mapping reject the quartet topology congruent to trees inferred with morphological characters. Moreover, quartet mapping shows that confounding signal present in the data set is sufficient to explain the weak signal for the quartet topology derived from morphological characters. Although outgroup choice affects results, our study could narrow possible trees to derivatives of a single quartet topology. For highly disputed relationships, we propose to apply a series of tests (AU and quartet mapping), since results of such tests allow to narrow down possible relationships and to rule out confounding signal.
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