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1 December 2003 ALLOMETRIC AND NONALLOMETRIC COMPONENTS OF DROSOPHILA WING SHAPE RESPOND DIFFERENTLY TO DEVELOPMENTAL TEMPERATURE
Vincent Debat, Mattieu Bégin, Hélène Legout, Jean R. David
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Abstract

Phenotypic plasticity of wing size and shape of Drosophila simulans was analyzed across the entire range of viable developmental temperatures with Procrustes geometric morphometric method. In agreement with previous studies, size clearly decreases when temperature increases. Wing shape variation was decomposed into its allometric (24%) and nonallometric (76%) components, and both were shown to involve landmarks located throughout the entire wing blade. The allometric component basically revealed a progressive, monotonous variation along the temperature. Surprisingly, nonallometric shape changes were highly similar at both extremes of the thermal range, suggesting that stress, rather than temperature per se, is the key developmental factor affecting wing shape.

Vincent Debat, Mattieu Bégin, Hélène Legout, and Jean R. David "ALLOMETRIC AND NONALLOMETRIC COMPONENTS OF DROSOPHILA WING SHAPE RESPOND DIFFERENTLY TO DEVELOPMENTAL TEMPERATURE," Evolution 57(12), 2773-2784, (1 December 2003). https://doi.org/10.1554/03-130
Received: 25 February 2003; Accepted: 1 July 2003; Published: 1 December 2003
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KEYWORDS
Allometric shape
Drosophila simulans
geometric morphometrics
growth temperature
nonallometric shape
phenotypic plasticity
stress
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