The Fate of Genetic Markers in Populations of Boll Weevils1,2,3

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The genetic markers, pearl and ebony, were introduced into populations of Anthonomus grandis Boheman in the laboratory in 25.4-cm-diameter plastic cages and also in the field in 20X6X6-ft Saran®-covered cages at 2 levels of gene frequency, 0.90 and 0.10. At both levels the mutations persisted in competition with their wild-type alleles. When the ebony mutant was released in a small-field test, the mutant persisted in competition with large numbers of wild-type field weevils. Also, weevils heterozygous for the mutant were found in fields situated 1½-2 miles from the release point. Some applicable population genetics theories arc discussed.

Document Type: Research Article

Publication date: June 1, 1968

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