Cited by 248Invertebrate Taxonomy and EcologyGenomics and Phylogenetic StudiesEvolution and Paleontology Studies

Evidence from 12 S Ribosomal RNA Sequences that Onychophorans Are Modified Arthropods

Ballard, J. William O., Olsen, Gary J., Faith, Daniel P., Odgers, Wendy A., Rowell, David M., Atkinson, Peter W.·1992·Science

Abstract

The evolutionary relationships of the onychophorans (velvet worms) and the monophyly of the arthropods have generated considerable debate. Cladistic analyses of 12S ribosomal RNA sequences indicate that arthropods are monophyletic and include the onychophorans. Maximum parsimony analyses and monophyly testing within arthropods indicate that myriapods (millipedes and centipedes) form a sister group to all other assemblages, whereas crustaceans (shrimps and lobsters) plus hexapods (insects and allied groups) form a well-supported monophyletic group. Parsimony analysis further suggests that onychophorans form a sister group to chelicerates (spiders and scorpions) and crustaceans plus hexapods, but this relationship is not well supported by monophyly testing. These relationships conflict with current hypotheses of evolutionary pathways within arthropods.

Integrity signals

Registry

Crossref · 10.1126/science.1455227

Cites

29 of 29 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Ballard, J. W. O., Olsen, G. J., Faith, D. P., Odgers, W. A., Rowell, D. M., & Atkinson, P. W.
Affiliations
  • Commonwealth Scientific and Industrial Research Organisation (AU)
  • University of Illinois Urbana-Champaign (US)
  • Australian National University (AU)
Venue
Science
Published
1992-11-20
Volume
258
Issue
5086
Pages
1345-1348
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1996090648
Cited by
248
References
28
Citations by year
2022: 8 · 2021: 1 · 2020: 3 · 2016: 2 · 2015: 2 · 2014: 1 · 2013: 2 · 2012: 4
FWCI
37.59
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Invertebrate Taxonomy and Ecology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
Keywords
onychophorans, velvet worms, arthropod phylogeny, Myriapoda, Crustacea, hexapod, chelicerates, sister group relationships, arthropod evolution
MeSH terms
Animals, Base Sequence, DNA, Mitochondrial, Humans, Invertebrates, Molecular Sequence Data, Phylogeny, RNA, Ribosomal, Sequence Homology, Nucleic Acid

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review