DAPC scatterplot of the 17 Mhc supertypes. 12 PCs and three discriminant functions (dimensions) were retained during analyses, to describe the relationship between the clusters. The scatterplot show only the first two PCs (d = 2) of the DAPC of Mhc supertypes. The bottom right graph illustrates the variation explained by the 12 PCs. Each allele is represented as a dot and the supertypes as ellipses.
Sepil et al. BMC Evolutionary Biology 2012 12:68 doi:10.1186/1471-2148-12-68