Some Effects of Gamma Radiation on Fertility of Drosophila melanogaster and Viability of Sperm after Multiple Matings of Males

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Untreated Drosophila melanogaster Meigen females mated to males exposed to 16 kr of gamma radiation in the pupal or adult stage produced as untreated eggs as untreated females mated to untreated males, but few or no adults emerged. Females exposed to 16 kr during the pupal or adult stage and mated to untreated males produced no eggs. When males and females were treated with 16 kr as 1-, 5-, or 10-day-old adults and mated immediately after treatment, normal numbers of eggs were produced but very few adults emerged, except for females treated when 10 days old, which produced a significantly larger number of eggs than females treated at 1 and 5 days of age.

When 1-, 5-, or 10-day-old males were irradiated with 16 and mated 1 or 6 days after treatment to untreated females, normal numbers of eggs were produced, but again few or no adults emerged, an indication that restoration of damaged sperm did not occur.

When males exposed to 8 or 16 kr were individually furnished a series of untreated virgin females within an 8-hour period on the same day of treatment and .5and 10 days after treatment, the females laid fairly normal numbers of eggs, but 99% of these eggs were sterile. Fewer eggs were deposited by the fourth and fifth untreated females in each series than by the first and second females.

Document Type: Research Article

Publication date: December 1, 1963

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  • Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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