Rapid laboratory evolution of adult wing area in Drosophila melanogaster in response to humidity

Evolution; International Journal of Organic Evolution
W Jason KenningtonLinda Partridge

Abstract

We examined the evolutionary response of wing area (a trait highly correlated with other measures of body size) to relative humidity (RH), temperature, and their interaction in Drosophila melanogaster, using replicated lines that had been allowed to evolve at low or high humidity at 18 degrees C or at 25 degrees C. We found that after 20 weeks of selection (5-10 generations), low RH lines had significantly greater wing areas than high RH lines in both sexes. This evolutionary response may have resulted from selection of larger flies with a smaller surface area for water loss relative to their weight, or as a correlated response to selection on some other unidentified trait. There were no evolutionary effects of temperature on wing area or cell density. This may have been due to the short duration of the selection experiment, and/or counteracting selection pressures on body size at warm temperature.

References

Oct 3, 1999·Genetical Research·L PartridgeV French
Jun 21, 2002·Genetical Research·Rebecca HallasAry A Hoffmann

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Citations

Apr 18, 2007·Biological Reviews of the Cambridge Philosophical Society·Jeff Arendt
Jul 24, 2008·Evolution; International Journal of Organic Evolution·R Craig StillwellCharles W Fox
Feb 1, 2011·Journal of Evolutionary Biology·R K VijendravarmaT J Kawecki
Sep 19, 2012·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Ronald Enrique Morales VargasJean-Pierre Dujardin
Feb 4, 2010·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Ronald Enrique Morales VargasJean-Pierre Dujardin
Apr 22, 2020·Journal of Evolutionary Biology·Aline Gibson VegaRobert J Dugand

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