Fig. 7

Principle component analysis. SNPRelate [21] was used to project 225 libraries (Additional file 1) from 184 Personal Genome Project (PGP) samples onto a principle component analysis using four different populations from the HapMap 3 project. Hierarchical clustering of this data using SNPRelate suggests that self-reported ethnicity for 182 of the 184 PGP samples matched the correct HapMap 3 ethnicity. The two PGP samples whose self-reported ethnicity did not cluster with the correct HapMap 3 ethnic group self-reported as Asian but their grandparents were of Indian and Sri Lankan ancestry. ASW African ancestry in Southwest USA, CEU Utah residents with Northern and Western European ancestry from the Centre de’Etude du Polymorphism Humain, Foundation Jean Dausset in Paris, France, CHB Han Chinese in Beijing, China, EV eigenvector, MEX Mexican ancestry in Los Angeles, California