Cited by 253Marine Invertebrate Physiology and EcologyDevelopmental Biology and Gene RegulationGenomics and Phylogenetic Studies

The DOI matches its Crossref record; 79 of the 79 references it cites were found in a registry or an index.

Independent evolution of striated muscles in cnidarians and bilaterians

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Abstract

Striated muscles are present in bilaterian animals (for example, vertebrates, insects and annelids) and some non-bilaterian eumetazoans (that is, cnidarians and ctenophores). The considerable ultrastructural similarity of striated muscles between these animal groups is thought to reflect a common evolutionary origin. Here we show that a muscle protein core set, including a type II myosin heavy chain (MyHC) motor protein characteristic of striated muscles in vertebrates, was already present in unicellular organisms before the origin of multicellular animals. Furthermore, 'striated muscle' and 'non-muscle' myhc orthologues are expressed differentially in two sponges, compatible with a functional diversification before the origin of true muscles and the subsequent use of striated muscle MyHC in fast-contracting smooth and striated muscle. Cnidarians and ctenophores possess striated muscle myhc orthologues but lack crucial components of bilaterian striated muscles, such as genes that code for titin and the troponin complex, suggesting the convergent evolution of striated muscles. Consistently, jellyfish orthologues of a shared set of bilaterian Z-disc proteins are not associated with striated muscles, but are instead expressed elsewhere or ubiquitously. The independent evolution of eumetazoan striated muscles through the addition of new proteins to a pre-existing, ancestral contractile apparatus may serve as a model for the evolution of complex animal cell types.

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Crossref · 10.1038/nature11180

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  1. Sarà, M., Sarà, A., Nickel, M. & Brümmer, F. Three new species of Tethya (Porifera: Demospongiae) from German aquaria Stuttg. Beitr. Naturkd. A. 631, 1–15 (2001)
  2. Weissenfels, N. Scanning electron microscope histology of spongy Ephydatia fluviatilis . Microsc. Acta 85, 345–350 (1982)

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Metadata

Authors
Steinmetz, P. R. H., Kraus, J. E. M., Larroux, C., Hammel, J. U., Amon-Hassenzahl, A., Houliston, E., Wörheide, G., Nickel, M., Degnan, B. M., & Technau, U.
Affiliations
  • University of Vienna (AT)
  • The University of Queensland (AU)
  • Friedrich Schiller University Jena (DE)
  • Technische Universität Darmstadt (DE)
  • Centre National de la Recherche Scientifique (FR)
  • Bayerische Staatssammlung für Paläontologie und Geologie (DE)
Corresponding author
Technau, Ulrich
Venue
Nature
Published
2012-06-27
Volume
487
Issue
7406
Pages
231-234
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2005570641
Cited by
252
References
78
Citations by year
2026: 11 · 2025: 15 · 2024: 5 · 2023: 13 · 2022: 19 · 2021: 19 · 2020: 15 · 2019: 24 · 2018: 20 · 2017: 17 · 2016: 23 · 2015: 33 · 2014: 16 · 2013: 19 · 2012: 3
FWCI
16.89
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • HAL (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › 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 › Genomics and Phylogenetic Studies
Keywords
convergent evolution, Cnidaria, bilaterians, muscle proteins, sponges, ctenophores, jellyfish, Z-disc proteins, contractile apparatus, muscle ultrastructure, titin, troponin, functional diversification
MeSH terms
Animals, Cnidaria, Biological Evolution, Gene Expression Regulation, Phylogeny, Myosin Heavy Chains, Gene Duplication, Muscle, Striated

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