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Updated: Jul 19, 2026
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Heart Dissection in Larval, Juvenile and Adult Zebrafish, Danio rerio
Published on: September 30, 2011
Diversin regulates heart formation and gastrulation movements in development
Heinz Moeller1, Andreas Jenny, Hans-Joerg Schaeffer
1Max Delbrueck Center for Molecular Medicine, Robert-Roessle-Strasse 10, 13092 Berlin, Germany.
Summary
Vertebrate Diversin protein interacts with Dishevelled to regulate noncanonical Wnt signaling, controlling heart precursor fusion and gastrulation in zebrafish development. This interaction is crucial for embryonic organ formation and planar cell polarity.
Area of Science:
- Developmental Biology
- Molecular Biology
- Genetics
Background:
- Wnt signaling pathways are essential for vertebrate and invertebrate development.
- Noncanonical Wnt signaling regulates beta-catenin-independent developmental processes.
- Diversin is a potential orthologue of Drosophila Diego, implicated in developmental regulation.
Purpose of the Study:
- To investigate the role of vertebrate Diversin in zebrafish embryogenesis.
- To elucidate the mechanism by which Diversin regulates noncanonical Wnt signaling.
- To determine the interaction between Diversin and Dishevelled.
Main Methods:
- Zebrafish embryogenesis studies to observe heart precursor fusion and gastrulation.
- Biochemical assays to confirm direct interaction between Diversin and Dishevelled.
- Functional analysis using mutations in Diversin and Dishevelled.
- Investigation of Diversin's role in Drosophila planar cell polarity.
Main Results:
- Diversin controls heart precursor fusion and gastrulation movements in zebrafish.
- Diversin directly interacts with Dishevelled, mediating noncanonical Wnt pathway signals.
- Ankyrin repeats of Diversin are essential for Dishevelled interaction and signaling.
- A specific mutation in Dishevelled disrupts its interaction with Diversin.
- Diversin influences planar cell polarity in Drosophila.
Conclusions:
- Diversin and Dishevelled function dependently in zebrafish gastrulation and organogenesis.
- Diversin is a key regulator of noncanonical Wnt signaling in vertebrate development.
- The Diversin-Dishevelled interaction is critical for mediating developmental signals.
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