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Fluorescence in Situ Hybridisation Studies Provide Evidence for Somatic Mosaicism in De Novo Dystrophin Gene Deletions

Overview
Journal Hum Genet
Specialty Genetics
Date 1995 Jan 1
PMID 7814024
Citations 2
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Abstract

The fluorescence in situ hybridisation (FISH) technique was tested for its ability to detect somatic mosaicism in mothers of isolated deletion cases of Duchenne/Becker muscular dystrophy. A control female with known germline and somatic mosaicism was examined, and both the normal cell line and the carrier cell line were detected. Subsequent FISH analysis of three other mothers of boys with apparent de novo dystrophin gene deletions revealed a second patient with a high level of somatic mosaicism, suggesting that a proportion of de novo dystrophin gene deletions occur as mitotic errors early in development rather than as meiotic errors during gametogenesis.

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