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Micro-array analysis decipher exceptional complex familial chromosomal rearrangement.
Hum. Genet. 119, 145-153 (2006)
Recently there has been an increased interest in large-scale genomic variation and clinically in the consequences of haploinsufficiency of genomic segments or disruption of normal gene function by chromosome rearrangements. Here, we present an extraordinary case in which both mother and daughter presented with unexpected chromosomal rearrangement complexity, which we characterized with array-CGH, array painting and multicolor large insert clone hybridizations. We found the same 12 breakpoints involving four chromosomes in both mother and daughter. In addition, the daughter inherited a microdeletion from her father. We mapped all breakpoints to the resolution level of breakpoint spanning clones. Genes were found within 7 of the 12 breakpoint regions, some of which were disrupted by the chromosome rearrangement. One of the rearrangements disrupted a locus, which has been discussed as a quantitative trait locus for fetal hemoglobin expression in adults. Interestingly, both mother and daughter show persistent fetal hemoglobin levels. We detail the most complicated familial complex chromosomal rearrangement reported to date and thus an extreme example of inheritance of chromosomal rearrangements without error in meiotic segregation.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
array-CGH; array-painting; microdeletions; complex chromosomal rearrangements; meiosis
Language
english
Publication Year
2006
HGF-reported in Year
2006
ISSN (print) / ISBN
0340-6717
e-ISSN
1432-1203
Journal
Human Genetics
Quellenangaben
Volume: 119,
Pages: 145-153
Publisher
Springer
Reviewing status
Peer reviewed
Institute(s)
Institute of Human Genetics (IHG)
Research field(s)
Genetics and Epidemiology
PSP Element(s)
FE 70731
PubMed ID
16395598
Erfassungsdatum
2006-08-02