Micro-array analyses decipher exceptional complex familial chromosomal rearrangement

Christine Fauth, Susan M. Gribble, Keith M. Porter, Montserrat Codina-Pascual, Bee Ling Ng, Jürgen Kraus, Sabine Uhrig, Jürgen Leifheit, Thomas Haaf, Heike Fiegler, Nigel P. Carter, Michael R. Speicher

    Research output: Contribution to journalArticleResearchpeer-review

    17 Citations (Scopus)

    Abstract

    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. © Springer-Verlag 2005.
    Original languageEnglish
    Pages (from-to)145-153
    JournalHuman Genetics
    Volume119
    Issue number1-2
    DOIs
    Publication statusPublished - 1 Mar 2006

    Keywords

    • Array-CGH
    • Array-painting
    • Complex chromosomal rearrangements
    • Meiosis
    • Microdeletions
    • Persistent fetal hemoglobin

    Fingerprint Dive into the research topics of 'Micro-array analyses decipher exceptional complex familial chromosomal rearrangement'. Together they form a unique fingerprint.

    Cite this