Portal de Periódicos da CAPES

Array painting using microdissected chromosomes to map chromosomal breakpoints

2007; Karger Publishers; Volume: 116; Issue: 3 Linguagem: Inglês

10.1159/000098181

1424-8581

Liesbeth Backx, Hilde Van Esch, Cindy Melotte, Nadezda Kosyakova, Heike Starke, Jean‐Pierre Frijns, Thomas Liehr, Joris Vermeesch,

Genomics and Chromatin Dynamics

Molecular characterization of breakpoints of chromosomal rearrangements is a successful strategy for the identification of candidate disease genes. Mapping translocation breakpoints and rearranged chromosomal boundaries is labor intensive and/or time consuming. Here, we present a novel and rapid procedure to map such chromosomal breakpoints by hybridizing amplified microdissection derived DNA of aberrant chromosomes to arrays containing genomic clones. We illustrate the potential of the technique by molecularly delineating the breakpoints in five small supernumerary marker chromosomes (sSMC) and mapping the breakpoints of five different chromosomal translocations.