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Evidence from 18 S Ribosomal DNA that the Lophophorates Are Protostome Animals
Abstract
The suspension-feeding metazoan subkingdom Lophophorata exhibits characteristics of both deuterostomes and protostomes. Because the morphology and embryology of lophophorates are phylogenetically ambiguous, their origin is a major unsolved problem of metazoan phylogenetics. The complete 18 S ribosomal DNA sequences of all three lophophorate phyla were obtained and analyzed to clarify the phylogenetic relationships of this subkingdom. Sequence analyses show that lophophorates are protostomes closely related to mollusks and annelids. This conclusion deviates from the commonly held view of deuterostome affinity.
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Evidence for a clade of nematodes, arthropods and other moulting animals
Aguinaldo, A. M. A., Turbeville, J. M., Linford, L. S., Rivera, M. C., Garey, J. R., Raff, R. A., & Lake, J. A. (1997) · Nature · doi:10.1038/387489a0 · Cited by 1,609
Self-citationEarly animal evolution: emerging views from comparative biology and geology
Knoll, A. H., & Carroll, S. B. (1999) · Science · doi:10.1126/science.284.5423.2129 · Cited by 821
Peterson, K. J., & Eernisse, D. J. (2001) · Evolution & Development · doi:10.1046/j.1525-142x.2001.003003170.x · Cited by 529
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Metadata
- Authors
- Halanych, K. M., Bacheller, J. D., Aguinaldo, A. M. A., Liva, S. M., Hillis, D. M., & Lake, J. A.
- Venue
- Science
- Published
- 1995-03-17
- Volume
- 267
- Issue
- 5204
- Pages
- 1641-1643
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2011124999
- Cited by
- 579
- References
- 1
- FWCI
- 36.52
- Type
- journal article
- Language
- en
- Open access
- closed
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