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Related Experiment Videos

Gene mapping and chromosome 19.

D J Shaw, J D Brook, A L Meredith

    Journal of Medical Genetics
    |February 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

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    Chromosome 19 is the most mapped small chromosome, detailing inherited disorders like myotonic dystrophy. DNA polymorphisms and hybrid cell lines aid in ordering gene loci and creating a detailed genetic map.

    Area of Science:

    • Human Genetics
    • Molecular Biology
    • Genomics

    Background:

    • Chromosome 19 is extensively mapped, with approximately 40 loci identified.
    • Key inherited disorders such as myotonic dystrophy and familial hypercholesterolemia are associated with this chromosome.
    • Includes important genes like apolipoproteins and receptors for insulin and poliovirus.

    Purpose of the Study:

    • To summarize the current mapping status of Chromosome 19.
    • To highlight the significance of Chromosome 19 in inherited diseases.
    • To describe the methods used for gene mapping and ordering on Chromosome 19.

    Main Methods:

    • Utilizing cloned genes and random DNA sequences to identify polymorphisms.
    • Employing blood group and protein polymorphisms for locus ordering.

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  • Using hybrid cell lines for regional assignment of loci.

    • Main Results:

    • Established a framework for ordering loci and estimating genetic distances on Chromosome 19.
    • Identified numerous DNA polymorphisms for genetic mapping.
    • Assigned loci to specific regions using hybrid cell lines.

    Conclusions:

    • Chromosome 19 mapping is advanced, facilitating future detailed genetic map construction.
    • The identified loci and polymorphisms are crucial for understanding Chromosome 19-related disorders.
    • Continued research promises a comprehensive genetic map of Chromosome 19.