Genetic map of the human pseudoautosomal region reveals a high rate of recombination in female meiosis at the Xp telomere

• Verfasst von: Henke, Anja [VerfasserIn]
• Verfasst von: Fischer, Christine [VerfasserIn]
• Verfasst von: Rappold, Gudrun [VerfasserIn]
• Titel: Genetic map of the human pseudoautosomal region reveals a high rate of recombination in female meiosis at the Xp telomere
• Verf.angabe: Anja Henke, Christine Fischer, and Gudrun A. Rappold
• Jahr: 1993
• Umfang: 8 S.
• Teil: volume:18
• Teil: year:1993
• Teil: number:3
• Teil: pages:478-485
• Teil: extent:8
• Fussnoten: Online 3 June 2011 ; Elektronische Reproduktion der Druck-Ausgabe ; Gesehen am 30.03.2021
• Titel Quelle: Enthalten in: Genomics
• Ort Quelle: San Diego, Calif. : Academic Press, 1987
• Jahr Quelle: 1993
• Band/Heft Quelle: 18(1993), 3, Seite 478-485
• ISSN Quelle: 1089-8646
• DOI: doi:10.1016/S0888-7543(11)80003-0
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1752757238

Abstract

This paper describes the genetic map of the pseudoautosomal region bounded by the telomere of the short arms of the X and Y chromosomes. In males, meiotic exchange on Xp/Yp is confined to this region, leading to highly elevated recombination rates. The map was constructed using 11 pseudoautosomal probes (six of which are new) and typing individuals from 38 CEPH families. All markers have been physically mapped, thus providing the opportunity to compare genetic distance to physical distance through all intervals of the map. This comparison reveals an unexpected high rate of recombination in female meiosis between loci DXYS20 and DXYS78, within 20-80 kb from the telomere. Within this telomere-adjacent region no differences in male and female recombination rates are seen. Furthermore, data from this genetic map support the hypothesis of a linear gradient of recombination across most of the region in male meiosis and provide densely spaced anchor points for linkage studies especially in the telomeric portion of the pseudoautosomal region.