Distance assessments between consomic strains and founder strains. A) Scatterplot of the first two PCs of a principal components analysis including strain mean shapes of PWD (large square), C57BL/6J (large dot) and the consomic strains (small dots). B) Pairwise Procrustes distances between PWD, C57BL/6J and the CS. C) Scatterplot of the first two PCs of a principal components analysis including PWD (squares), C57BL/6J (dots) and an artificial "strain" (diamonds) created by adding the sum over all C57BL/6J-CS strain mean Procrustes coordinates-differences to the C57BL/6J individual shapes. This "B6 + sum of consomic effects" population represents the hypothetical phenotypes which would occur if the individual effects of all chromosomes acted together in a purely additive fashion. Numbers on arrows indicate Procrustes distances between the strains. D) as before, but including the wild mouse populations from  (circles), indicating the range of natural variation of house mouse mandible shape (see text).
Boell et al. BMC Evolutionary Biology 2011 11:309 doi:10.1186/1471-2148-11-309