Genetic sexing in Drosophila melanogaster using the alcohol dehydrogenase locus and a Y-linked translocation

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Abstract
By incorporating ethanol (4% v/v) into the larval rearing medium of a specially constructed Drosophila melanogaster strain it was possible to produce only male adults; the female larvae died. In this strain, the male determining chromosome was linked with a positive Alcohol dehydrogenase (ADH) allele by a translocation. The females were homozygous for the null allele and hence sensitive to ethanol. This genetic sexing method is discussed in relation to its use in the genetic control of insects.