Fig. 2: Genetic clusters after the dimensionality reduction method.

This figure presents two-dimensional visualizations of genotype data from Japanese participants, grouped using PCA-UMAP dimensionality reduction techniques. Then, DBSCAN was used to cluster the PCA-UMAP projection, with six distinct clusters represented by different colors. a The PCA-UMAP projection prior to clustering. b The PCA-UMAP projection post-DBSCAN clustering c A pie chart illustrating the distribution of participants across the clusters, with each pie segment colored to correspond with the cluster assignments from Figure 2b.