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Polymorphic variants in human chromosome 15

T R Chen, M L Kao, J Marks

    American Journal of Medical Genetics
    |January 1, 1981
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers identified eight polymorphic variants on human chromosome 15 using various staining techniques. These chromosome 15 variants can serve as unique genetic fingerprints for individual identification.

    Area of Science:

    • Human Genetics
    • Cytogenetics
    • Molecular Biology

    Background:

    • Human chromosome 15 exhibits complex structural variations.
    • Understanding chromosomal polymorphisms is crucial for genetic identification and diagnostics.

    Purpose of the Study:

    • To characterize polymorphic variants on human chromosome 15.
    • To investigate the potential of these variants as individual genetic markers.

    Main Methods:

    • Utilized Q, C, Q-C, and Ag-NOR staining methods for variant detection.
    • Employed BrdU-Hoechst 33258-stained R bands (RBH) and high-resolution G subbands for detailed karyologic analysis.

    Main Results:

    • Identified eight distinct polymorphic variants on chromosome 15, including fluorescent segments, giant satellites, and heterochromatin variations.

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  • Characterized the short arm of chromosome 15 into at least four distinct chromatin segments based on staining properties.
  • Observed similarities in some variants with those found in chromosomes 13, D, and G groups.

    • Conclusions:

    • The identified polymorphic variants on chromosome 15 provide a basis for detailed karyologic characterization.
    • These variants can function as unique "karyologic fingerprints" for individual identification in both in vivo and in vitro settings.