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Related Experiment Videos

Chinese crested dog.

R Robinson

    The Journal of Heredity
    |May 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    The Chinese crested dog

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    Area of Science:

    • Genetics
    • Animal breeding

    Background:

    • The Chinese crested dog exhibits unique hairlessness, with hair only on the head, limbs, and tail.
    • This trait is linked to a dominant gene for hypotrichosis (Hr).

    Purpose of the Study:

    • To explain the genetic basis of the Chinese crested dog's hairlessness.
    • To describe the inheritance pattern of the hypotrichosis gene.

    Main Methods:

    • Genetic analysis of coat characteristics in Chinese crested dogs.
    • Segregation analysis of hairless and long-haired traits.

    Main Results:

    • The Chinese crested dog is an obligate heterozygote for the hypotrichosis gene (HrHr).
    • Homozygous HrHr results in prenatal lethality.
    • The long-haired segregants (++ ll) are known as powderpuffs.

    Conclusions:

    • The unique coat of the Chinese crested dog is due to a dominant gene for hypotrichosis.
    • Understanding this genetic mechanism is key to breed development and preservation.