Summary
In the article the results of a parallel routine and fluorescent investigation of chromosomes in 103 normal individuals (51 women and 52 men) are presented. There were no gross chromosomal abnormalities in the individuals studied, but in 30 (29.1%) of them various autosomal variants (1q+, 9q+, 16q+, 17ph+, Dp+, Gp+, et al.) were detected by the routine method. Five men (9.5%) had Y chromosome variants. The authors were successful in identifyng practically all these chromosomal variant by their fluorescent banding patterns. The occurrence of brilliant fluorescent bands in chromosome parts showing variable fluorescence (paracentromeric area of chromosome 3, short arms and satellites of acrocentric chromosomes and the distal part of Y chromosome) was also investigated. Some questions connected with karyotype polymorphism in man are discussed.
Zusammenfassung
Die Ergebnisse einer Chromosomenuntersuchung mit konventionellen Methoden einerseits und mit der Fluorescenzmethode andererseits bei 103 Normalpersonen (51 Frauen, 52 Männer) werden vorgelegt. Die untersuchten Personen zeigten keine stärkeren Chromosomen-Anomalien; 30 (29,1%) zeigten jedoch verschiedene autosomale Varianten (1q+, 9q+, 16q+, 17ph+, Dp+, Gp+, u.a.), die mit konventionellen Methoden entdeckt werden konnten. Fünf Männer (9,5%) zeigten Varianten des Y-Chromosoms. Praktisch alle diese Varianten konnten auch mit Hilfe der Fluorescenztechnik identifiziert werden. Daneben wurde das Vorkommen brillanter Fluorescenzbanden in Chromosomen, die eine variable Fluorescenz zeigen, untersucht (parazentrischer Bereich des Chromosoms 3; kurze Arme und Satelliten der akrozentrischen Chromosomen; distaler Teil des Y-Chromosoms 3; kurze Arme und Satelliten der akrozentrischen Chromosomen; distaler Teil des Y-Chromosoms). Einige Fragen im Zusammenhang mit dem Polymorphismus des Karyotyps beim Menschen werden diskutiert.
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This investigation is partly supported by the WHO grant HG-70/9684148/23.
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Mikelsaar, A.V.N., Tüür, S.J. & Käosaar, M.E. Human karyotype polymorphism. Humangenetik 20, 89–101 (1973). https://doi.org/10.1007/BF00284843
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DOI: https://doi.org/10.1007/BF00284843