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Incontinentia Pigmenti (IP) is a skin and tissue disorder that causes the development of skin lesions and and possibly abnormalities of the teeth, hooves and eyes in affected mares.
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Specifications
Breeds | |
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Gene | |
Organ | |
specimen | Hair, Blood EDTA, Blood Heparin, Semen, Tissue |
Mode of Inheritance | |
Chromosome | |
Also known as | |
Year Published |
General information
Incontinentia Pigmenti (IP) is a skin and tissue disorder that causes the development of skin lesions and and possibly abnormalities of the teeth, hooves and eyes in affected mares. The disorder is found in the Quarter Horse, and is caused by an X-linked dominant mutation to the gene IKBKG
Clinical features
Affected mares develop itchy, exudative lesions on the skin soon after birth. These lesions can evolve into wart-like lesions and areas of alopecia (hair loss). Occasionally, hair re-growth with a woolly appearance is observed. Affected horses also have streaks of darker and lighter coat colouration from birth, which can resemble a brindled coat pattern.
IP only develops in carrier females. Males carrying the mutation die in utero. This means that in breeding, carrier females have only a 33% chance of giving birth to a stallion, rather than 50%.
Additional information
References
Pubmed ID: 24324710
Omia ID: 1899