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Inherited sterility among Agrotis ipsilon laboratory population, exposed to gamma irradiation

Published online by Cambridge University Press:  19 September 2011

S. Elnagar ,
M. M. Megahed ,
H. A. Sallam  and
S. M. Ibrahim
S. Elnagar
Affiliation:
Department of Economic Entomology and Insecticides, Faculty of Agriculture, Cairo University, Egypt
M. M. Megahed
Affiliation:
Department of Economic Entomology and Insecticides, Faculty of Agriculture, Cairo University, Egypt
H. A. Sallam
Affiliation:
Department of Economic Entomology and Insecticides, Faculty of Agriculture, Cairo University, Egypt
S. M. Ibrahim
Affiliation:
Department of Economic Entomology and Insecticides, Faculty of Agriculture, Cairo University, Egypt
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Abstract

Full-grown pupae Agrotis ipsilon were irradiated with 5 or 10 krad and crossed with unirradiated female. The F1 progeny were more sterile than parents. Percentage of mated female of F1 was greatly reduced while the mating frequency was increased. Less inseminated females were among the F1, particularly when the female inherited the sterility. The mortality among larvae of the F1 was high and dose-dependent, and that among F2 larvae was even higher. The sex ratio of the F1 progeny was altered in favour of male, while that of the F2 was normal. 10 krad for P1 male was sufficient to inhibit hatching of the eggs produced by F1 adults.

Keywords

Agrotis ipsilonprogenysex ratiosterilitygamma irradiation
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 5 , Issue 6 , December 1984 , pp. 501 - 503
Copyright
Copyright © ICIPE 1984

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References

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