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The interfrontal bone and mutant genes in the mouse.

D R Johnson

    Journal of Anatomy
    |July 1, 1976
    PubMed
    Summary

    Mutant genes affecting neural tube development in mice also alter skull proportions and influence the presence of an interfrontal bone. These genetic factors link skull width, interfrontal bone formation, and overall cranial development.

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    Area of Science:

    • Developmental biology
    • Genetics
    • Craniofacial development

    Background:

    • The interfrontal bone is a variable ossification in the frontal bone suture.
    • Mutant genes affecting neural tube development can impact embryonic development.
    • Skull morphology is influenced by genetic and developmental factors.

    Purpose of the Study:

    • To investigate the relationship between corrected skull width and interfrontal bone presence/size.
    • To examine the effect of specific mutant genes on skull proportions and interfrontal bone formation.
    • To understand how genes influencing neural tube development affect adult skull morphology.

    Main Methods:

    • Analysis of skull width and interfrontal bone presence in mice with specific mutations.
    • Comparison of cranial proportions in genetically modified mice versus controls.
    • Review of literature on genes affecting neural tube and skull development.

    Main Results:

    • Mutant genes that increase interfrontal bone incidence also affect neural tube development.
    • These genes significantly alter the proportions of the adult skull.
    • A correlation exists between genetic modifications, neural tube defects, and craniofacial changes.

    Conclusions:

    • Genes impacting neural tube development are associated with altered skull proportions.
    • The presence and size of the interfrontal bone are influenced by these genetic factors.
    • Craniofacial development is sensitive to genetic perturbations affecting early embryonic development.

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