Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

The Location of the nucleolus organizer regions in Drosophila hydei

  • 50 Accesses

  • 34 Citations

Abstract

The positions of the nucleolus organizer regions in metaphase chromosomes of Drosophila hydei were detected by in situ hybridization experiments. In agreement with earlier conclusions the nucleolus of the X chromosome was found to originate in a terminal region of the heterochromatic arm. The Y chromosome contains two nucleolus organizers, one in a terminal position of the long arm, and the other in the short arm. The implications with respect to the evolution of the Y chromosome are discussed.

This is a preview of subscription content, log in to check access.

References

  1. Beck, H.: The phenotype of Xbb+/O males in Drosophila hydei. Drosophila Information Service 49, 76 (1972)

  2. Beck, H.: Some observations on Y-chromosomal bobbed mutants in Drosophila hydei. Drosophila Information Service 50, 94 (1974)

  3. Hennig, W.: Untersuchungen zur Struktur und Funktion des Lampenbürsten-Y-Chromosoms in der Spermatogenese von Drosophila. Chromosoma (Berl.) 22, 294–357 (1967)

  4. Hennig, W.: Ribonucleic acid synthesis of the Y-chromosome of Drosophila hydei. J. molec. Biol. 38, 227–239 (1968)

  5. Hennig, W.: Molecular hybridization of DNA and RNA in situ. Int. Rev. Cytol. 38, 1–44 (1973)

  6. Hennig, W., Meyer, G. F., Hennig, I., Leoncini, O.: Structure and function of the Y chromosome of Drosophila hydei. Cold Spr. Harb. Symp. quant. Biol. 38, 673–683 (1974)

  7. Hess, O.: Struktur-Differenzierungen im Y-Chromosom von Drosophila hydei und ihre Beziehung zu Gen-Aktivitäten. III. Sequenz und Lokalisation der Schleifenbildungsorte. Chromosoma (Berl.) 16, 227–248 (1965)

  8. Meyer, G. F.: Die Funktionsstrukturen des Y-Chromosoms in den Spermatocytenkernen von Drosophila hydei, D. neohydei, D. repleta und einigen anderen Drosophila-Arten. Chromosoma (Berl.) 14, 207–255 (1963)

  9. Meyer, G. F., Hennig, W.: The nucleolus in primary spermatocytes of Drosophila hydei. Chromosoma (Berl.) 46, 121–144 (1974a)

  10. Meyer, G.F., Hennig, W.: Molecular aspects of the fertility factors in Drosophila. In: The functional anatomy of the spermatozoon (B. A. Afzelius, ed.), p. 69–75. Oxford-New York: Pergamon Press 1974b

  11. Ritossa, F. M., Atwood, K. C., Spiegelman, S.: A molecular explanation of the bobbed mutants of Drosophila as partial deficiencies of “ribosomal” DNA. Genetics 54, 819–834 (1966)

  12. Schäfer, U.: Some observations on bobbed in Drosophila hydei. Drosophila Information Service 49, 51 (1972)

  13. Schäfer, U., Kunz, W.: Evidence for a second nucleolus organizer (NO) on the Y chromosome of Drosophila hydei. Genetics 77, s 58 (1974)

  14. Spencer, W. P.: Interaction of alleles at the bobbed locus in Drosophila hydei. Amer. Naturalist 79, 85–88 (1941)

  15. Spencer, W. P.: Iso-alleles at the bobbed locus in Drosophila hydei populations. Genetics 29, 520–536 (1944)

  16. Van Breugel, F. M. A.: An analysis of white-mottled mutants in Drosophila hydei, with observations on X-Y exchanges in the male. Genetica ('s-Gravenhage) 41, 589–625 (1970)

  17. Wasserman, M.: Cytological studies of the repleta group of the genus Drosophila: IV. The hydei subgroup. Univ. Texas Publ. No. 6205, 73–83 (1962)

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Hennig, W., Link, B. & Leoncini, O. The Location of the nucleolus organizer regions in Drosophila hydei . Chromosoma 51, 57–63 (1975). https://doi.org/10.1007/BF00285808

Download citation

Keywords

  • Developmental Biology
  • Terminal Region
  • Organizer Region
  • Metaphase Chromosome
  • Hybridization Experiment