Zusammenfassung
Ein mathematisches Verfahren wird beschrieben, mit dessen Hilfe auf mögliche, durch Translokationen bedingte Paarungspräferenzen der Chromosomen in der Meiose bei Autotetraploiden geschlossen werden kann. Bei Gerste konnte mit Hilfe von einfachen und multiplen Translokationen im duplex-heterozygoten Zustand gezeigt werden, daß die Strukturumbauten offenbar in gewissen Grenzen zu präferenzieller Paarung der an den Translokationen beteiligten Chromosomen führten.
Summary
A mathematical method is described which can be used for ascertaining possible effects of translocations on chromosome pairing during meiosis in autotetraploids. Using single and multiple translocations in duplex-heterozygous condition in barley, it has been shown that the structural rearrangements apparently resulted in a certain amount of preferential pairing of the chromosomes involved in the interchanges.
Abstract
Описывается математ ический способ выявл ения возможных, обусловле нных транслокацией, предп очтительных спарива ний хромосом в мейозе у автотетрап лоидов. Для ячменя удалось по казать при помощи про стых и множественных транслокаций в дупле кс-гетерозиготном со стоянии, что благодаря структурным перестр ойкам хромосом, в изве стных границах, может быть индуцировано префер енциальное спариван ие.
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Herrn Prof. Dr. Drs. h. c.Hans Stubbe zum 75. Geburtstag gewidmet.
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Meister, A., Bretschneider, H. Präferenzielle Paarung der Chromosomen autotetraploider Gerste — Mathematisches Modell. Die Kulturpflanze 25, 297–311 (1977). https://doi.org/10.1007/BF02014814
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DOI: https://doi.org/10.1007/BF02014814