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* To whom correspondence should be addressed. E-mail: rubes{at}vri.cz.
We identified a small, paternally inherited supernumerary marker chromosome inv dup(15), in a phenotypically normal and normozoospermic male from a couple with reproductive problems. Sperm analysis by fluorescence in situ hybridization (FISH) showed that the marker was present in 26% of sperm nuclei. The disomy 15 was ten times higher than in normal control donors. FISH analysis for aneuploidies of the other chromosomes showed an increase in non-disjunction of chromosome 21. We also examined twenty-four embryos by preimplantation genetic diagnosis and ten (41.7%) embryos contained the marker. This report provides information about inheritance of inv dup(15) from a male carrier.
Key words: Assisted reproduction
Reproductive Genetics
Sperm
FISH
chromosome 15
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