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Mamm Genome. 1992;3(3):143-50.

Framework multipoint map of the long arm of human chromosome 4 and telomeric localization of the gene for FSHD.

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  • 1Collaborative Research, Inc., Waltham, Massachusetts 02154.


Mapping the long arm of Chromosome (Chr) 4 has assumed medical relevance with the establishment of linkage of facioscapulohumeral muscular dystrophy (FSHD) to distal 4q markers. We have constructed a multipoint linkage map using DNA markers that map to the long arm of Chr 4. Segregation data were collected for 17 DNA markers on the multigenerational CEPH mapping families, and data for one marker were taken from the published CEPH database. Genotypic information for six of these markers was also collected from a set of 24 families that exhibited inheritance of FSHD. Multipoint analyses allowed us to construct a map of 12 loci, connecting two previously separate linkage groups. Significant sex-specific differences in recombination were found for some genetic intervals. Four loci from the distal region of this map showed linkage with FSHD. A map using these terminal markers gave the strongest support for FSHD in the most distal position over all other possible positions.

[PubMed - indexed for MEDLINE]
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