Data from: Sexual selection and experimental evolution of chemical signals in Drosophila pseudoobscura

John Hunt, Rhonda R. Snook, Christopher Mitchell, Helen S. Crudgington & Allen J. Moore
Our expectations for the evolution of chemical signals in response to sexual selection are uncertain. How are chemical signals elaborated? Does sexual selection result in complexity of the composition or in altered quantities of expression? We addressed this in Drosophila pseudoobscura by examining male and female cuticular hydrocarbons (CHs) after 82 generations of elevated (E) sexual selection or relaxed sexual selection through monogamy (M). The CH profile consisted of 18 different components. We extracted three...
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