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A Quantitative Comparison of the Similarity between Genes and Geography in Worldwide Human Populations

Figure 6

Procrustes analysis of genetic and geographic coordinates of Central/South Asian populations.

(A) Geographic coordinates of 18 populations. (B) Procrustes-transformed PCA plot of genetic variation. The Procrustes analysis is based on the unprojected latitude-longitude coordinates and PC1-PC2 coordinates of 362 individuals. PC1 and PC2 are indicated by dotted lines, crossing over the centroid of all individuals. PC1 and PC2 account for 1.59% and 1.31% of the total variance, respectively. The Procrustes similarity statistic is (). The rotation angle of the PCA map is .

Figure 6

doi: https://doi.org/10.1371/journal.pgen.1002886.g006