Abstract
Analysis of 78 Huntington's disease (HD) chromosomes with multi–allele markers revealed 26 different haplotypes, suggesting a variety of independent HD mutations. The most frequent haplotype, accounting for about one third of disease chromosomes, suggests that the disease gene is between D4S182 and D4S180. However, the paucity of an expected class of chromosomes that can be related to this major haplotype by assuming single crossovers may reflect the operation of other mechanisms in creating haplotype diverstiy. Some of these mechanisms sustain alternative scenarios that do not require a multiple mutational origin for HD and/or its positioning between D4S182 and DAS180.
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MacDonald, M., Novelletto, A., Lin, C. et al. The Huntington's disease candidate region exhibits many different haplotypes. Nat Genet 1, 99–103 (1992). https://doi.org/10.1038/ng0592-99
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DOI: https://doi.org/10.1038/ng0592-99
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