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Related Experiment Video

Updated: May 16, 2026

Generation of Dispersed Presomitic Mesoderm Cell Cultures for Imaging of the Zebrafish Segmentation Clock in Single Cells
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Published on: July 24, 2014

The segmentation clock: inherited trait or universal design principle?

David L Richmond1, Andrew C Oates

  • 1Max Planck Institute of Molecular Cell Biology and Genetics, Pfotenhauerstr. 108, 01307 Dresden, Germany.

Current Opinion in Genetics & Development
|November 15, 2012
PubMed
Summary

A segmentation clock, crucial for body segment formation in vertebrates, may also operate in arthropods and plants. This suggests a conserved mechanism for generating serial anatomy across diverse life forms.

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Area of Science:

  • Developmental Biology
  • Evolutionary Biology
  • Plant Biology

Background:

  • Metamerism, the segmentation of multicellular organisms, is common but its underlying mechanisms are poorly understood.
  • Vertebrate embryos utilize a segmentation clock for rhythmic, sequential segment addition during body elongation.
  • Recent findings suggest a segmentation clock operates in arthropods, hinting at a conserved mechanism for serial anatomy.

Purpose of the Study:

  • To review the principles of the segmentation clock.
  • To explore its potential conservation across animal and plant kingdoms.
  • To identify opportunities for interdisciplinary research.

Main Methods:

  • Literature review of segmentation clock mechanisms in model organisms.
  • Comparative analysis of segmentation processes in vertebrates, arthropods, and plants.
  • Discussion of conserved oscillatory mechanisms in tissue patterning.

Main Results:

  • The segmentation clock is a key mechanism for generating metameric patterns in vertebrates.
  • Evidence indicates a similar oscillatory process in arthropod segmentation and plant root development.
  • This suggests a fundamental role for segmentation clocks in biological development, potentially independent of evolutionary ancestry.

Conclusions:

  • The segmentation clock may represent a conserved developmental principle across kingdoms.
  • Investigating plant root development could illuminate conserved aspects of the segmentation clock.
  • Cross-kingdom comparisons offer new avenues for understanding fundamental biological patterning.