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RADIORESISTANCE OF THE RED FLOUR BEETLE, TRIBOLIUM CASTANEUM (COLEOPTERA: TENEBRIONIDAE), EXPOSED TO SUBLETHAL DOSES OF GAMMA IRRADIATION FOR 25 GENERATIONS

Published online by Cambridge University Press:  31 May 2012

John H. Brower
John H. Brower
Affiliation:
Stored-Product Insects Research and Development Laboratory, ARS-USDA, Savannah, Georgia
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Abstract

Populations of Tribolium castaneum (Herbst) exposed to sublethal doses of irradiation (0.5–4.0 krad) each generation for as many as 25 generations had decreases in reproductive capacity and increases in sterility that were positively correlated with the size of the dose per generation, but not with the number of ancestral generations treated. Exposure of the selected populations to an acute dose of irradiation (2.0 krad) revealed no increase in tolerance to irradiation even after 25 generations of selection. Radioresistant populations would probably not arise from fertile survivors of irradiation disinfestation of bulk grain.

Type
Articles
Information
The Canadian Entomologist , Volume 106 , Issue 3 , March 1974 , pp. 241 - 246
Copyright
Copyright © Entomological Society of Canada 1974

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References

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