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Cited by 269Invertebrate Taxonomy and EcologyMarine Invertebrate Physiology and EcologyGenomics and Phylogenetic Studies

The DOI matches its Crossref record; 49 of the 50 references it cites were found in a registry or an index.

A New Spiralian Phylogeny Places the Enigmatic Arrow Worms among Gnathiferans

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Marlétaz, Ferdinand, Peijnenburg, Katja T.C.A., Goto, Taichiro, Satoh, Noriyuki, Rokhsar, Daniel S.·2019·Current Biology
DOI 10.1016/j.cub.2018.11.042
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Abstract

Chaetognaths (arrow worms) are an enigmatic group of marine animals whose phylogenetic position remains elusive, in part because they display a mix of developmental and morphological characters associated with other groups [1, 2]. In particular, it remains unclear whether they are a sister group to protostomes [1, 2], one of the principal animal superclades, or whether they bear a closer relationship with some spiralian phyla [3, 4]. Addressing the phylogenetic position of chaetognaths and refining our understanding of relationships among spiralians are essential to fully comprehend character changes during bilaterian evolution [5]. To tackle these questions, we generated new transcriptomes for ten chaetognath species, compiling an extensive phylogenomic dataset that maximizes data occupancy and taxonomic representation. We employed inference methods that consider rate and compositional heterogeneity across taxa to avoid limitations of earlier analyses [6]. In this way, we greatly improved the resolution of the protostome tree of life. We find that chaetognaths cluster together with rotifers, gnathostomulids, and micrognathozoans within an expanded Gnathifera clade and that this clade is the sister group to other spiralians [7, 8]. Our analysis shows that several previously proposed groupings are likely due to systematic error, and we propose a revised organization of Lophotrochozoa with three main clades: Tetraneuralia (mollusks and entoprocts), Lophophorata (brachiopods, phoronids, and ectoprocts), and a third unnamed clade gathering annelids, nemerteans, and platyhelminthes. Consideration of classical morphological, developmental, and genomic characters in light of this topology indicates secondary loss as a fundamental trend in spiralian evolution.

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Metadata

Authors
Marlétaz, F., Peijnenburg, K. T. C. A., Goto, T., Satoh, N., & Rokhsar, D. S.
Affiliations
  • Okinawa Institute of Science and Technology Graduate University (JP)
  • Naturalis Biodiversity Center (NL)
  • Mie University (JP)
Corresponding author
Marlétaz, Ferdinand
ORCID
Venue
Current Biology
Publisher
Elsevier BV
Published
2019-01
Volume
29
Issue
2
Pages
312-318.e3
ISSN
0960-9822 (ISSN-L)
DOI
10.1016/j.cub.2018.11.042
OpenAlex
W2908647854
Cited by
268
References
50
Citations by year
2026: 24 · 2025: 33 · 2024: 28 · 2023: 34 · 2022: 30 · 2021: 45 · 2020: 41 · 2019: 32
FWCI
29.93
Type
journal article
Language
en
Open access
Licence
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
  • UvA-DARE (University of Amsterdam) (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
  • Okinawa Institute of Science and Technology Graduate University (Okinawa Institute of Science and Technology Graduate University) (submittedVersion, cc-by-nc-nd)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • Okinawa Institute of Science and Technology Graduate University
  • European Research Council (268513)
  • Netherlands Organization for Scientific Research (863.08.024, 016.161.351)
  • NSF (OCE-1029478, OCE-1338959)
  • UK NERC
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Invertebrate Taxonomy and Ecology
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Marine Invertebrate Physiology and Ecology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
chaetognaths, Gnathifera, Lophotrochozoa, phylogenomics, transcriptome, rotifers, Lophophorata, secondary losses, bilaterian evolution, compositional heterogeneity
MeSH terms
Animals, Invertebrates, Phylogeny, Evolution, Molecular, Transcriptome

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