Infertility and marker chromosomes: Application of molecular cytogenetic techniques in a case of inv dup(15)
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We report on a phenotypically normal man with infertility, whose 47,XY,+mar karyotype was studied by spectral karyotyping (SKY) and fluorescence in situ hybridization (FISH) using a chromosome-15-specific probe (LSI SNRPN). By these techniques, the marker chromosome was identified as a small inv dup (15). Possible causes for male infertility in this case are discussed.
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A.T. Maciel-Guerra, Department of Medical Genetics ? School of Medicine State University of Campinas, CP 6111 CEP 13083-970 Campinas, SP ? Brazil