Parental origin of the two additional haploid sets of chromosomes in an embryo with tetraploidy

Baumer A., Dres D., BAŞARAN S., İşçi H., Dehgan T., Schinzel A.

CYTOGENETIC AND GENOME RESEARCH, cilt.101, sa.1, ss.5-7, 2003 (SCI-Expanded) identifier identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 101 Sayı: 1
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1159/000073410
  • Dergi Adı: CYTOGENETIC AND GENOME RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.5-7
  • İstanbul Üniversitesi Adresli: Evet

Özet

We report on the molecular investigations performed on an embryo with tetraploidy, karyotype 92,XXXY. The embryo was spontaneously aborted after eight weeks of gestation. Molecular analyses were performed in order to determine the parental origin and mode of formation of the two additional haploid sets of chromosomes. Microsatellite markers mapping to pericentromeric chromosome regions were used. Our results show a maternal origin of one additional set of chromosomes most likely due to the incorporation of the polar Copyright (C) 2003 S . Karger AG, Basel body of meiosis I and a paternal origin of the second additional set of chromosomes most likely due to dispermy. The karyotype 92,XXXY is rather unusual, indeed the vast majority of cases with tetraploidy have the karyotypes 92,XXXX or 92,XXYY. To the best of our knowledge this is the first case with 92,XXXY for which molecular investigations have been performed. Copyright (C) 2003 S. Karger AG, Basel.