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Describing the Evolution of Reaction Norm Shape: Body Pigmentation in Drosophila
Patricia Gibert, Brigitte Moreteau, Jean R. David and Samuel M. Scheiner
Vol. 52, No. 5 (Oct., 1998), pp. 1501-1506
Published by: Society for the Study of Evolution
Stable URL: http://www.jstor.org/stable/2411320
Page Count: 6
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If phenotypic plasticity is a trait subject to selection and evolution, we need to quantify reaction norms and to identify the potential target(s) of selection. Previously we proposed the use of polynomial coefficients as reaction norm descriptors. However, the interpretation of these coefficients is not straightforward if the reaction norm is not linear. Therefore, we instead propose the use of characteristic values to describe reaction norms. We depict such characteristic values for linear, quadratic, and logistic reaction norms, discuss how they might evolve, and illustrate their estimation using data on abdominal pigmentation of Drosophila simulans.
Evolution © 1998 Society for the Study of Evolution