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Related Experiment Videos

Bithorax phenocopy and pattern formation. II. A model of prepattern formation.

M W Ho, P T Saunders, E Bolton

    Experimental Cell Biology
    |January 1, 1983
    PubMed
    Summary

    Phenocopy maps reveal diffusion-like processes in metathorax prepattern formation. This study models wavefront propagation, showing ether sensitivity is time-limited, impacting developmental timing.

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    Area of Science:

    • Developmental biology
    • Genetics
    • Mathematical modeling

    Background:

    • Phenocopy maps are crucial for understanding developmental processes.
    • Investigating spatial and temporal patterns of phenocopy spots provides insights into gene-environment interactions.

    Purpose of the Study:

    • To infer diffusion-like processes in metathorax prepattern formation.
    • To model the sequential propagation of wavefronts during development.
    • To analyze the temporal sensitivity of developmental processes to environmental factors.

    Main Methods:

    • Construction of phenocopy maps using spatial patterns and a defined distance function.
    • Analysis of temporal changes in distances between compartments.
    • Development of a two-wavefront propagation model.
    • Assessment of sensitivity to ether treatment over successive generations.

    Main Results:

    • Inferred diffusion-like processes underlying metathorax prepattern formation.
    • A model of sequential, orthogonal wavefront propagation was established.
    • Sensitivity to ether treatment was temporally restricted to the interval between wavefronts.
    • Observed changes over 13 generations indicate alterations in wave propagation timing and rates.

    Conclusions:

    • Prepatterning processes primarily involve the blastoderm cytoplasm or surface membrane.
    • The study provides a framework for understanding developmental plasticity and environmental influences.
    • Phenocopy mapping offers a powerful tool for dissecting complex developmental mechanisms.

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