Positive and negative geotactic behavior has been selected in strains ofDrosophila melanogaster for over 50 generations on multiple-unit classification mazes. Mating speed experiments showed that the selected and unselected strains differed greatly from each other. The geopositive flies mated more rapidly than the control flies, and the geonegative flies mated more slowly than the control flies. The females were shown to be chiefly responsible for the observed differences in mating speed. Investigation of other behavioral and structural changes indicated that courtship duration, locomotor activity, and aristal morphology also showed differences between the selected strains.
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This work was supported by NIH Genetics Training Grant GM01433 to Arizona State University with partial support from NIH Grant GM19583 to Charles M. Woolf and NIH Grant GM18690 to Rollin C. Richmond.
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Pyle, D.W. Correlated responses to selection for a behavioral trait inDrosophila melanogaster . Behav Genet 8, 333–340 (1978). https://doi.org/10.1007/BF01067396
- geotactic behavior
- D. melanogaster
- correlated responses