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An attempt to measure selection coefficients affecting the alcohol dehydrogenase polymorphism in Drosophila melanogaster populations maintained on ethanol media by J. G. Oakeshott; S. R. Wilson; J. B. Gibson is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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Eleven populations polymorphic for Adh Fand S alleles were established from wild-caught D. melanogaster. Seven of the populations were founded from mass collections each of several hundred flies and the other four were isofemale lines. Subcultures from all eleven were maintained on one of four different types of medium -standard laboratory medium, standard media supplemented to 3% or 9% (v/v) ethanol, and simulated wine seepages. These subcultures were rescored for F and S gene frequencies after 10, 20 and 30 generations. Maximum-likelihood methods were then used to estimate selection coefficients among the Adh genotypes and analyses of deviance were carried out to test the coefficients against hypotheses of neutrality and various modes of selection. No significant selective changes in Adh frequencies were observed in the seven mass cultures on any of the four different media types. However, highly significant selective effects were detected in the four isofemale lines; these effects were homogeneous across the four lines and the four media types and the underlying fitness set was estimated as 1.00:1.04:1.09 for S/S:F/S:F/F.

Who reads An attempt to measure selection coefficients affecting the alcohol dehydrogenase polymorphism in Drosophila melanogaster populations maintained on ethanol media?

Author

J. G. Oakeshott; S. R. Wilson; J. B. Gibson

Publisher

Springer Netherlands; Springer-Verlag; Kluwer Academic Publishers; Springer Science and Business Media LLC (ISSN 0016-6707)

Published

1983

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)