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Waves propagated during vertebrate development: observations and comments.

A Robertson

    Journal of Embryology and Experimental Morphology
    |April 1, 1979
    PubMed
    Summary
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    Propagated waves play crucial roles in vertebrate embryogenesis, with similar mechanisms observed in cellular slime mold aggregation. These developmental waves likely depend on a common cellular control mechanism in regulative embryos.

    Area of Science:

    • Developmental biology
    • Cellular biology
    • Embryology

    Background:

    • Propagated waves are observed during vertebrate embryogenesis.
    • The roles and mechanisms of these waves are not fully understood.
    • Similar wave phenomena occur in non-vertebrate systems like cellular slime molds.

    Purpose of the Study:

    • To discuss the status and potential roles of propagated waves in vertebrate embryogenesis.
    • To present preliminary data on wave propagation in chick and Medaka embryos.
    • To explore the commonality of wave propagation mechanisms across different species.

    Main Methods:

    • Observation of wave propagation using time-lapse films.
    • Comparative analysis of wave phenomena in vertebrate and non-vertebrate systems.

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  • Literature review on developmental control mechanisms.

    • Main Results:

    • Preliminary data show wave propagation in early chick (Gallus domesticus) and Medaka (Oryzias latipes) embryos.
    • General similarities were identified between vertebrate developmental waves and cellular slime mold aggregation waves.
    • The findings suggest a widespread role for propagated waves in regulative embryos.

    Conclusions:

    • Propagated waves are a significant feature of vertebrate embryogenesis.
    • A common cellular mechanism likely underlies wave propagation in regulative embryos.
    • This mechanism may be conserved across diverse species, including cellular slime molds.