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The function of the lampbrush loops formed by the Y chromosome of Drosophila hydei in spermatocyte nuclei

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Summary

The function of pairs of translocated fragments of the Y chromosome of Drosophila hydei was tested. As the pairs of fragments together had a complete set of Y chromosomal sites, complementation of their function could be predicted according to results of earlier experiments. In contrast to the earlier experiments the development of lampbrush loops during the spermatocyte stage was blocked in one partner of each combined pair. As a consequence, no complementary effect on spermiogenesis is detectable. The results indicate that the formation of lampbrush loops by seven sites in the Y chromosome is a necessary prerequisite for the normal progress of spermiogenesis. This can be considered as further support of the view that the lampbrush loops in spermatocyte nuclei of Drosophila are phenotypic manifestations of the activity of male fertility factors.

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References

  • Bridges, C. B.: Non-disjunction as a proof of the chromosome theory of hereditary. Genetics 1, 1–52, 107–163 (1916).

    Google Scholar 

  • Brosseau, G.: Genetic analysis of the male fertility factors on the Y chromosome of Drosophila melanogaster. Genetics 45, 257–274 (1960).

    Google Scholar 

  • Callan, H. G.: The nature of lampbrush chromosomes. Int. Rev. Cytol. 15, 1–34 (1963).

    Google Scholar 

  • Hess, O.: Strukturdifferenzierungen im Y-Chromosom von Drosophila hydei und ihre Beziehungen zu Genaktivitäten. III. Sequenz und Lokalisation der Schleifenbildungsorte. Chromosoma (Berl.) 16, 222–248 (1965).

    Google Scholar 

  • Hess, O.: Genetic control of differentiation in male germ line cells of Drosophila. Exp. Biol. Med. 1, 90–109 (1967a).

    Google Scholar 

  • — Complementation of genetic activity in translocated fragments of the Y chromosome in Drosophila hydei. Genetics 56, 283–295 (1967b).

    Google Scholar 

  • —, and G. F. Meyer: Chromosomal differentiations of the lampbrush type formed by the Y chromosome in Drosophila hydei, and D. neohydei. J. Cell Biol. 16, 527–539 (1963).

    Google Scholar 

  • —: Genetic activities of the Y chromosome in Drosophila during spermatogenesis. Advanc. Genet. 14, 171–223 (1968).

    Google Scholar 

  • Meyer, G. F.: Spermiogenese in normalen und Y-defizienten Männchen von Drosophila melanogaster und D. hydei. Z. Zellforsch. 84, 141–175 (1968).

    Google Scholar 

  • Stern, C.: Untersuchungen über Aberrationen des Y-Chromosoms von Drosophila melanogaster. Z. indukt. Abstamm. u. Vererb.-L. 51, 253–353 (1929).

    Google Scholar 

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Authors and Affiliations

  1. Labor für Chromosomenforschung, Biologisches Institut der Universität Freiburg, Germany

    Oswald Hess

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  1. Oswald Hess
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Communicated by G. Melchers

Supported by the Deutsche Forschungsgemeinschaft.

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Hess, O. The function of the lampbrush loops formed by the Y chromosome of Drosophila hydei in spermatocyte nuclei. Molec. Gen. Genet. 103, 58–71 (1968). https://doi.org/10.1007/BF00271157

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  • DOI: https://doi.org/10.1007/BF00271157

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