The DOI matches its Crossref record; 29 of the 29 references it cites were found in a registry or an index.
Evidence from 12 S Ribosomal RNA Sequences that Onychophorans Are Modified Arthropods
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.
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“Molecular trees at this high phylogenetic level have been based mainly on small subunit rRNA sequences, and they have not yet reached a state where they could be described as stable”
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Metadata
- 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
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