Genetic Analysis of Fenitrothion Resistance in the Sawtoothed Grain Beetle, Oryzaephilus surinamensis (Coleoptera: Cucujidae)

Author: Collins, P. J.

Source: Journal of Economic Entomology, Volume 79, Number 5, October 1986 , pp. 1196-1199(4)

Publisher: Entomological Society of America

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Insecticide assays were used to analyze the inheritance of fenitrothion resistance (145-fold) in a strain of the sawtoothed grain beetle, Oryzaephilus surinamensis (L.), from Australia. At the Le50, the response of the RS hybrid to fenitrothion was closer to its resistant than to its susceptible parent strain; there was no significant difference between the RS and SR hybrids (P < 0.05). X2 analyses of the observed responses of the F2 progeny and the F1-backcross progenies rejected the null hypothesis that a single gene was responsible for resistance. Fenitrothion resistance appears to be controlled by two or more autosomal factors and the major gene(s) involved is incompletely dominant.

Document Type: Research Article

Publication date: October 1, 1986

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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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