Cited by 600Marine Invertebrate Physiology and EcologyDevelopmental Biology and Gene RegulationWnt/β-catenin signaling in development and cancer

Unexpected complexity of the Wnt gene family in a sea anemone

Kusserow, Arne, Pang, Kevin, Sturm, Carsten, Hrouda, Martina, Lentfer, Jan, Schmidt, Heiko A., Technau, Ulrich, von Haeseler, Arndt +3 more·2005·Nature

Abstract

The Wnt gene family encodes secreted signalling molecules that control cell fate in animal development and human diseases. Despite its significance, the evolution of this metazoan-specific protein family is unclear. In vertebrates, twelve Wnt subfamilies were defined, of which only six have counterparts in Ecdysozoa (for example, Drosophila and Caenorhabditis). Here, we report the isolation of twelve Wnt genes from the sea anemone Nematostella vectensis, a species representing the basal group within cnidarians. Cnidarians are diploblastic animals and the sister-group to bilaterian metazoans. Phylogenetic analyses of N. vectensis Wnt genes reveal a thus far unpredicted ancestral diversity within the Wnt family. Cnidarians and bilaterians have at least eleven of the twelve known Wnt gene subfamilies in common; five subfamilies appear to be lost in the protostome lineage. Expression patterns of Wnt genes during N. vectensis embryogenesis indicate distinct roles of Wnts in gastrulation, resulting in serial overlapping expression domains along the primary axis of the planula larva. This unexpectedly complex inventory of Wnt family signalling factors evolved in early multi-cellular animals about 650 million years (Myr) ago, predating the Cambrian explosion by at least 100 Myr (refs 5, 8). It emphasizes the crucial function of Wnt genes in the diversification of eumetazoan body plans.

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Crossref · 10.1038/nature03158

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  • Nematostella has several clusters of homeobox genes, but only those on scaffolds 3 and 61 are embedded within the ancestral eumetazoan Hox context, providing independent support for their assignment as bona fide Nematostella Hox genes.

    “Nematostella has several clusters of homeobox genes (56)(57)(58), but only those on scaffolds 3 and 61 are embedded within the ancestral eumetazoan Hox context, providing independent support for the assignment of these homeobox genes as bona fide Nematostella Hox genes (54,56,59).”
  • S. purpuratus has WntA, which was previously reported absent from deuterostomes.

    “S. purpuratus has WntA, previously reported as being absent from deuterostomes (29).”
  • The expression patterns of Wnt and Tgfb ligands in Sycon are reminiscent of nested expression domains of Wnt ligands in Nematostella embryos.

    “These patterns are reminiscent of the nested expression domains of Wnt ligands in the Nematostella embryos 20 .”

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Authors
Kusserow, A., Pang, K., Sturm, C., Hrouda, M., Lentfer, J., Schmidt, H. A., Technau, U., von Haeseler, A., Hobmayer, B., Martindale, M. Q., & Holstein, T. W.
Affiliations
  • Technische Universität Darmstadt (DE)
  • University of Hawaiʻi at Mānoa (US)
  • Universität Innsbruck (AT)
  • John von Neumann Institute for Computing (DE)
  • Heidelberg University (DE)
Corresponding author
  • Martindale, Mark Q.
  • Holstein, Thomas W.
Venue
Nature
Published
2005-01-13
Volume
433
Issue
7022
Pages
156-160
ISSN
  • 1465-7392 (ISSN-L)
  • 0028-0836
  • 1476-4679
OpenAlex
W2155603123
Cited by
599
References
30
Citations by year
2026: 14 · 2025: 21 · 2024: 24 · 2023: 14 · 2022: 26 · 2021: 17 · 2020: 17 · 2019: 32 · 2018: 26 · 2017: 17 · 2016: 27 · 2015: 26 · 2014: 28 · 2013: 27 · 2012: 31
FWCI
44.31
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • JuSER (Forschungszentrum Jülich) (submittedVersion)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Marine Invertebrate Physiology and Ecology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
Keywords
Wnt gene family, Nematostella vectensis, Cnidaria, embryonic development, gastrulation, planula larvae, Cambrian explosion, phylogenetic analysis, gene expression patterns
MeSH terms
Animals, Bayes Theorem, Cloning, Molecular, Multigene Family, Molecular Sequence Data, Phylogeny, RNA, Messenger, Sea Anemones, Sequence Alignment, Gene Expression Regulation, Developmental, Evolution, Molecular, Intercellular Signaling Peptides and Proteins, Embryonic Development, Wnt Proteins

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