Molecular and General Genetics MGG

, Volume 135, Issue 3, pp 213–229 | Cite as

Etude d'un mutant bobbed ayant une quantité normale d'ADN ribosomal

  • M. Marrakechi

Study of a non deleted bobbed mutant


We studied a bobbed mutant of Drosophila melanogaster whose rDNA content is equal to that of a wild type strain. Biochemical studies showed the following results:
  • -The rDNA content is the same in ovaries and carcasses. This implies a lack of specific rDNA amplification in the ovaries.

  • -In vitro and In vivo studies indicate that on the whole the rate of rRNA synthesis is not decreased.

  • -A specific degradation of the 28s species seems to occur during the precursors processing. This result could be explained by a qualitative defect in the rDNA transcripts.


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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • M. Marrakechi
    • 1
  1. 1.Centre de Génétique Moléculaire du C.N.R.S.Gif s/YvetteFrance

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