Figure 6
![Figure 6](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1471-2148-11-306/MediaObjects/12862_2011_Article_1905_Fig6_HTML.jpg)
Scatter plots of the first four axes of a PCA comparison of the aggregate shape space of all individuals from the natural populations with the Procrustes mean shapes of the inbred strains. Red symbols: wild derived inbred strains; green symbols: classical inbred strains.