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A Musca domestica (L.) strain was prepared that combined a major chromosome II gene for resistance (R) to carbamate and organophosphate insecticides with the chromosome II recessive mutant marker carnation eye (car). After 120 generations of intermittent selection with insecticide, the strain continued to produce two types of flies: normal wing resistant flies and stubby wing (stw) susceptible flies. Stw is a recessive mutant marker on chromosome II located near car and the major gene for resistance. Detailed genetic analyses revealed that the strain maintained stw and R in a heterozygous condition. Apparently, a balanced polymorphism is acting to maintain this heterozygosity.
Document Type: Research Article
Publication date: October 1, 1985
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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.