Induction of Translocations in Mature Drosophila Oocytes Over a Dose Range of 10-500 Roentgens of X-Rays

  1. S. Abrahamson,
  2. P. Gullifor,
  3. E. Sabol, and
  4. J. Voigtlander
  1. Department of Zoology, University of Wisconsin, Madison, Wis. 53706
  2. Department of Genetics, University of Wisconsin, Madison, Wis. 53706

Abstract

Data are presented that demonstrate that a dose of 10 R of x-rays to mature oocytes in Drosophila causes a significant increase, more than double the spontaneous frequency, of inherited translocations. The dose-frequency relationship appears to fit best a linear response between 10 and 50 R. From 50 to 500 R, the frequency of rearrangements increases at the conventional dose 3/2 relationship.

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