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Selection for oviposition preference in Drosophila melanogaster

Published online by Cambridge University Press:  14 April 2009

Stephen R. Bird
Affiliation:
Department of Genetics, School of Biological Sciences, University of Leicester, Leicester LE1 7RH, England
Robert Semeonoff
Affiliation:
Department of Genetics, School of Biological Sciences, University of Leicester, Leicester LE1 7RH, England
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Summary

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Populations of Drosophila melanogaster were subjected to selection for differing oviposition preference under allopatric and sympatric conditions. Flies were presented with the choice of a potato-based medium and a medium containing sugar and killed yeast on which to lay their eggs. Some gene flow was possible under sympatric conditions. In the allopatric lines selection was successful in rapidly generating an increased preference for sugar, and in the sympatric lines divergent oviposition preferences were generated in two cases out of four. A significant degree of reproductive isolation between one pair of allopatric lines was generated after eighteen months of selection.

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Type
Research Article
Copyright
Copyright © Cambridge University Press 1986