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The zootype and the phylotypic stage
Abstract
What is it that defines an animal? The definition provided here, made on the basis of developmental biology, suggests methods for resolving phylogenetic problems.
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“Structural and functional homologies between regulatory genes used among bilaterians indicate that, during embryogenesis, animals share a common set of genes for defining the head, trunk, and posterior regions (zootype; Slack et al., 1993).”
From Conservation of Hox/ParaHox-Related Genes in the Early Development of a Cnidarian (2001) · cites this paper as Slack et al., 1993
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Metadata
- Authors
- Slack, J. M. W., Holland, P. W. H., & Graham, C. F.
- Affiliations
- University of Oxford (GB)
- Venue
- Nature
- Published
- 1993-02
- Volume
- 361
- Issue
- 6412
- Pages
- 490-492
- ISSN
- 0028-0836 (ISSN-L)
- 1476-4687
- OpenAlex
- W1990137409
- Cited by
- 699
- References
- 37
- Citations by year
- 2026: 7 · 2025: 18 · 2024: 22 · 2023: 9 · 2022: 13 · 2021: 19 · 2020: 16 · 2019: 17 · 2018: 12 · 2017: 12 · 2016: 14 · 2015: 19 · 2014: 14 · 2013: 11 · 2012: 20
- FWCI
- 260.49
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- Nature (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Social Sciences › Arts and Humanities › History and Philosophy of Science › Philosophy of Biology and Scientific Explanation
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Keywords
- phylotypic stage, animal development, phylogenetic systematics, homology
- MeSH terms
- Animals, Genes, Homeobox, Morphogenesis, Phylogeny, Gene Expression
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