Allometric and nonallometric components of Drosophila wing shape respond differently to developmental temperature
Allometric and nonallometric components of Drosophila wing shape respond differently to developmental temperature
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DOI：
10.1111/j.0014-3820.2003.tb01519.x
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发表时间：
2003-12-01
期刊：
影响因子：
3.3
通讯作者：
David, JR
中科院分区：
文献类型：
--
作者：
Debat, V;Bégin, M;David, JR
采用Procrustes几何形态计量学方法，分析了模拟果蝇在整个发育温度范围内翅膀大小和形状的表型可塑性。与以前的研究一致，当温度升高时，尺寸明显减小。机翼形状的变化被分解成异速生长（24%）和非异速生长（76%）的组成部分，两者都被证明涉及整个机翼叶片的地标。异速生长分量基本上表现为沿着温度的渐进单调变化。令人惊讶的是，非异速生长的形状变化是高度相似的，在两个极端的温度范围内，这表明，应力，而不是温度本身，是影响机翼形状的关键发展因素。
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.