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Die Häufigkeit röntgeninduzierter mitotischer Rekombination bei Genotypen mit verschiedenen X-Y-Kombinations-Chromosomen von Drosophila melanogaster

Frequency of X-ray induced mitotic recombination in genotypes with different X-Y-combination-chromosomes in Drosophila melanogaster

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Summary

In first and second instar larvae of Drosophila melanogaster mitotic recombination has been induced by X-rays. Resulting mosaic spots were analysed in the eyes of adult females. The five examined genotypes varied in the combination of different X-chromosomes and in the presence or absence of the duplication Dp(1;3)N 264-58. X-chromosomes used have been elongated by proximally or distally linked arms of the Y-chromosome. The portion of Y-heterochromatin in the genome is negatively correlated with the frequency of twin mosaic spots (Fig. 1). The frequency of these spots is lower in flies bearing the duplication than in those without the duplication. With respect to the X-chromosome combinations, there are no marked differences in the frequencies of single mosaic spots (Fig. 2); with respect to the duplication they are absent. In the genotype Y S X/X.Y S prophases of neuroblast mitoses (Fig. 4) show normal pairing of homologous chromosome sections. Reasons for the different spot frequencies are discussed.

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Literatur

  • Abbadessa, R., Burdick, A. B.: The effect of X-irradiation on somatic crossing over in Drosophila melanogaster. Genetics 48, 1345–1356 (1963).

    Google Scholar 

  • Becker, H. J.: Über Röntgenmosaikflecken und Defektmutationen am Auge von Drosophila und die Entwicklungsphysiologie des Auges. Z. indukt. Abstamm.- u. Vererb.-L. 88, 333–373 (1957).

    Google Scholar 

  • —: The inflence of heterochromatin, inversion-heterozygosity and somatic pairing on X-ray induced mitotic recombination in Drosophila melanogaster. Molec. Gen. Genetics 105, 203–218 (1969).

    Google Scholar 

  • Brosseau, G. E., Jr.: The environmental modification of somatic crossing over in Drosophila melanogaster with special reference to developmental phase. J. exp. Zool. 136, 567–593 (1957).

    Google Scholar 

  • Dobzhansky, Th.: Studies on chromosome conjugation III. Behavior of duplicating fragments. Z. indukt. Abstamm.- u. Vererb.-L. 68, 134–162 (1934).

    Google Scholar 

  • Grell, E. H.: Influence of the location of a chromosome duplication on crossing over in Drosophila melanogaster. Genetics 50, 251–252 (1964).

    Google Scholar 

  • Haendle, J.: Abhängigkeit des strahleninduzierten somatischen Faktorenaustausches von der Strahlenart, der Dosis und der Dosisrate. Diplomarbeit, München 1967.

  • Hagen, U.: Biochemie der biologischen Strahlenwirkungen. In: Ergebnisse der medizinischen Strahlenwirkungen, herausgeg. von H. R. Schinz, R. Glauner, A. Rüttimann, Neue Folge, Bd. 1, S. 487–527. Stuttgat: Georg Thieme 1964.

    Google Scholar 

  • Janning, W.: Bestimmung des Heterochromatisierungsstadiums beim white-Positionseffekt mittels röntgeninduzierter mitotischer Rekombination in der Augenanlage von Drosophila melanogaster. Molec. Gen. Genetics 107, 128–149 (1970).

    Google Scholar 

  • Kaplan, W. D.: The influence of Minutes upon somatic crossing over in Drosophila melanogaster. Genetics 38, 630–651 (1953).

    Google Scholar 

  • Lefevre, G., Jr.: Mutation in germinal and somatic tissue. Drosophila Inf. Serv. 23, 91–92 (1949).

    Google Scholar 

  • Marquardt, H.: Die Röntgenpathologie der Mitose I und II. Z. Bot. 32, 401–482 (1938).

    Google Scholar 

  • Ronen, A.: Interchromosomal effects on somatic recombination in Drosophila melanogaster. Genetios 50, 649–658 (1964).

    Google Scholar 

  • Sachs, L.: Statistische Auswertungsmethoden, 2. Aufl. Berlin-Heidelberg-New York: Springer 1969.

    Google Scholar 

  • Stern, C.: Somatic crossing over and segregation in Drosophila melanogaster. Genetics 21, 625–730 (1936).

    Google Scholar 

  • Taylor, W. C.: Somatic crossing over in sc 4L sc 8R heterozygotes. Drosophila Inf. Serv. 43, 126 (1968).

    Google Scholar 

  • Tokunaga, C., Arnheim, N., Jr.: Age dependence of the locations of X-ray induced somatic crossing over in Drosophila. Genetics 54, 267–276 (1966).

    Google Scholar 

  • Walen, K. H.: Somatic crossing over in relationship to heterochromatin in Drosophila melanogaster. Genetics 49, 905–923 (1964).

    Google Scholar 

  • Weaver, E. C.: Somatic crossing over and its genetic control in Drosophila. Genetics 45, 345–357 (1960).

    Google Scholar 

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Authors and Affiliations

  1. Zoologisches Institut der Universität München, München, Deutschland

    Wilfried Janning

  2. Zoologisch-vergl. anatomisches, Institut der Universität Zürich, Künstlergasse 16, CH-8006, Zürich, Schweiz

    Wilfried Janning

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  1. Wilfried Janning
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Vorgelegt von E. Hadorn

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Janning, W. Die Häufigkeit röntgeninduzierter mitotischer Rekombination bei Genotypen mit verschiedenen X-Y-Kombinations-Chromosomen von Drosophila melanogaster . Molec. Gen. Genetics 107, 150–157 (1970). https://doi.org/10.1007/BF00333630

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  • DOI: https://doi.org/10.1007/BF00333630

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