The DOI matches its Crossref record; 240 of the 240 references it cites were found in a registry or an index.
Trochophora larvae: cell-lineages, ciliary bands and body regions. 2. Other groups and general discussion
Abstract
The embryology of sipunculans, entoprocts, nemertines, platyhelminths (excluding acoelomorphs), rotifers, ectoprocts, phoronids, brachiopods, echinoderms and enteropneusts is reviewed with special emphasis on cell-lineage and differentiation of ectodermal structures. A group Spiralia comprising the four first-mentioned phyla plus annelids and molluscs seems well defined through the presence of spiral cleavage with early blastomere specification, prototroch with characteristic cell-lineage, cerebral ganglia developing from cells of the first micromere quartet (i.e., the episphere) and a ventral nervous system developing from the hyposphere. The planktotrophic trochophore was probably the larval type of the ancestor of this group. Another group comprising phoronids, brachiopods, echinoderms and enteropneusts appears equally well delimited. It is characterized by radial cleavage with late blastomere specification, possibly by the presence of a neotroch consisting of monociliate cells, by the absence of cerebral ganglia and of a well-defined brain and paired longitudinal nerve cords developing in connection with the blastopore, and by coelomic organization. Its ancestral larval type was probably a dipleurula. Several characters link rotifers with the spiralians, although they do not show the spiral pattern in the cleavage. Ectoprocts are still a problematic group, but some characters indicate spiralian affinities.
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“Ciliated larvae are widespread in cnidarians, lophotrochozoans (a major protostome group comprising annelids, molluscs and other marine phyla), and deuterostomes (echinoderms, hemichordates, cephalochordates).”
From Origin and early evolution of neural circuits for the control of ciliary locomotion (2011) · cites this paper as [7]
In the citing paper
“Spiralians, a sub-group of lophotrochozoans comprising annelids, molluscs, entoprocts, nemerteans, and platyhelminths, have ciliary bands with multiciliated cells [6,7].”
From Origin and early evolution of neural circuits for the control of ciliary locomotion (2011) · cites this paper as [7]
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Metadata
- Authors
- Nielsen, C.
- Affiliations
- University of Copenhagen (DK)
- Corresponding author
- Nielsen, Claus
- ORCID
- Nielsen, Claus
- Venue
- Journal of Experimental Zoology Part B Molecular and Developmental Evolution
- Publisher
- Wiley
- Published
- 2005
- Volume
- 304B
- Issue
- 5
- Pages
- 401-447
- ISSN
- 1552-5007 (ISSN-L)
- 1552-5015
- OpenAlex
- W2091255780
- Cited by
- 111
- References
- 240
- Citations by year
- 2025: 6 · 2024: 2 · 2023: 8 · 2022: 3 · 2021: 1 · 2020: 5 · 2019: 9 · 2018: 5 · 2017: 3 · 2015: 9 · 2014: 4 · 2013: 6 · 2012: 5
- FWCI
- 0.57
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Experimental Zoology Part B Molecular and Developmental Evolution (publishedVersion)
- PubMed (publishedVersion)
- Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Marine Invertebrate Physiology and Ecology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Planarian Biology and Electrostimulation
- Keywords
- trochophore larvae, cell lineage, ciliary bands, body regions, embryology, spiral cleavage, prototroch, cerebral ganglion, Spiralia, planktotrophy, rotifers, Bryozoa, phoronids, brachiopods, Echinodermata, Enteropneusta, entoprocts, sipunculans, larval evolution
- MeSH terms
- Animals, Cilia, Biological Evolution, Invertebrates, Larva, Plankton
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