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

Figure 3

Procrustes analysis of genetic and geographic coordinates of Sub-Saharan African populations, excluding hunter-gatherer populations and Mbororo Fulani.

(A) Geographic coordinates of 23 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 348 individuals. PC1 and PC2 are indicated by dotted lines, crossing over the centroid of all individuals. PC1 and PC2 account for 1.34% and 0.69% of the total variance, respectively. The Procrustes similarity is (). The rotation angle of the PCA map is .

Figure 3

doi: https://doi.org/10.1371/journal.pgen.1002886.g003