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Related Experiment Videos

Axis formation in zebrafish

W Driever1

  • 1Cardiovascular Research Center, Massachusetts General Hospital, Charlestown 02129-2060, USA.

Current Opinion in Genetics & Development
|October 1, 1995
PubMed
Summary
This summary is machine-generated.

Zebrafish axis formation research advances understanding of vertebrate development. Key genes like cyclops and organizer markers (goosecoid, axial, lim1) are crucial for patterning.

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Area of Science:

  • Developmental Biology
  • Genetics
  • Comparative Vertebrate Development

Background:

  • Zebrafish axis formation shares similarities with higher vertebrates.
  • Dorsoventral axis formation is influenced by UV irradiation, lithium, and lineage analyses.
  • Molecular mechanisms and the fish Nieuwkoop center remain under investigation.

Purpose of the Study:

  • To explore the molecular mechanisms of axis formation in zebrafish.
  • To identify key genes and signaling pathways involved in zebrafish development.
  • To compare zebrafish developmental processes with those in higher vertebrates.

Main Methods:

  • UV irradiation and lithium treatment experiments.
  • Detailed early lineage tracing analyses.

Related Experiment Videos

  • Gene expression analysis of key developmental markers (Vg1, goosecoid, axial, lim1, cyclops).
  • Large-scale mutagenesis screens for genetic analysis.

    • Main Results:

    • Expression of a Vg1 homolog and induction of mesoderm by activin observed.
    • Mouse nodal gene product induces ectopic axes in zebrafish.
    • Zebrafish organizer identified by goosecoid, axial, and lim1 expression domains.
    • Cyclops gene maintains goosecoid expression in head axial mesoderm.

    Conclusions:

    • Zebrafish serve as a valuable model for studying vertebrate axis formation.
    • Specific genes and molecular signals play critical roles in patterning.
    • Further research is needed to fully elucidate the molecular basis of axis formation and the Nieuwkoop center in zebrafish.