Figure 1
From: Phenotypic evolution from genetic polymorphisms in a radial network architecture
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1741-7007-5-50/MediaObjects/12915_2007_Article_146_Fig1_HTML.jpg)
Observed response to selection. Average male body weights are plotted for high (top curve) and low (bottom curve) selected lines [33]. After 46 generations of directional selection, the lines differ by around 1600 g. The response to selection in the low line reached a plateau after about 30 generations, probably because of physiological constraints. The four-loci genetic network evidenced in [26] has been represented on the right.