Fig. 2
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12920-022-01220-0/MediaObjects/12920_2022_1220_Fig2_HTML.png)
Contributions by each population to the first two dimensions of PCA (PC1 and PC2). The red dashed horizontal line represents the expected mean contribution
Contributions by each population to the first two dimensions of PCA (PC1 and PC2). The red dashed horizontal line represents the expected mean contribution