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. 2012 Aug 23;8(8):e1002886. doi: 10.1371/journal.pgen.1002886

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© 2012 Wang et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(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 334 individuals. PC1 and PC2 are indicated by dotted lines, crossing over the centroid of all individuals. PC1 and PC2 account for 1.58% and 0.98% of the total variance, respectively. The Procrustes similarity statistic is (). The rotation angle of the PCA map is .

Inline graphic — (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 334 individuals. PC1 and PC2 are indicated by dotted lines, crossing over the centroid of all individuals. PC1 and PC2 account for 1.58% and 0.98% of the total variance, respectively. The Procrustes similarity statistic is (). The rotation angle of the PCA map is .