Zeitschrift für Vererbungslehre

, Volume 98, Issue 2, pp 150–151 | Cite as

X-irradiation of theDrosophila male and its effect on the number of sperm transferred to the female

  • S. Zimmering
  • G. Fowler


Experiments were carried out to determine the number of sperm transferred by the maleDrosophila after X-irradiation. Acute doses (1000 r/min) of 5,000 r, 25,000 r and 50,000 r delivered to the male results in reductions of some 20–25%, 60–65%, and 85–90%, respectively, in the number of sperm scored in the ventral receptable of inseminated females. It appears, further, that sperm in ejaculates of relatively small size (50 or fewer) from irradiated as well as unirradiated males distribute themselves such that 20–50% or more found in the spermathecae. The bearing of this observation on the apparent 1:1 sperm: progeny ratio reported byPeacock andErickson (1965) from ejaculates with low sperm number is noted.


Acute Dose Sperm Number Progeny Ratio Ventral Receptable Unirradiated Male 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. Lefevre, G., andU. B. Jonsson: Sperm transfer, storage, displacement and utilization inDrosophila melanogaster. Genetics47, 1719–1736 (1962).Google Scholar
  2. Peacock, W. J., andJ. Erickson: Segregation-distortion and regularly nonfunctional products of spermatogenesis inDrosophila melanogaster. Genetics51, 313–328 (1965).Google Scholar
  3. Yanders, A. F.: The effects of X-rays on insemination and sperm retention inDrosophila. Genetics49, 309–317 (1964).Google Scholar

Copyright information

© Springer-Verlag 1966

Authors and Affiliations

  • S. Zimmering
    • 1
  • G. Fowler
    • 1
  1. 1.Division of Biological and Medical Sciences Brown UniversityProvidenceUSA

Personalised recommendations