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American Journal of Human Genetics logoLink to American Journal of Human Genetics
. 1996 Jan;58(1):28–34.

The gene responsible for a severe form of peripheral neuropathy and agenesis of the corpus callosum maps to chromosome 15q.

L K Casaubon 1, M Melanson 1, I Lopes-Cendes 1, C Marineau 1, E Andermann 1, F Andermann 1, J Weissenbach 1, C Prévost 1, J P Bouchard 1, J Mathieu 1, G A Rouleau 1
PMCID: PMC1914947  PMID: 8554065

Abstract

Peripheral neuropathy with or without agenesis of the corpus callosum (ACCPN) is a devastating neurodegenerative disorder that is transmitted as an autosomal recessive trait. Genealogical studies in a large number of affected French Canadian individuals suggest that ACCPN results from a single founder mutation. A genomewide search using 120 microsatellite DNA markers in 14 French Canadian families allowed the mapping of the ACCPN gene to a 5-cM region on chromosome 15q13-q15 that is flanked by markers D15S1040 and D15S118. A maximum two-point LOD score of 11.1 was obtained with the marker D15S971 at a recombination fraction of 0. Haplotype analysis and linkage disequilibrium support a founder effect. These findings are the first step in the identification of the gene responsible for ACCPN, which may shed some light on the numerous conditions associated with the progressive peripheral neuropathy or agenesis of the corpus callosum.

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Selected References

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