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![Prefecture-level population structure of the Japanese based on SNP genotypes of 11,069 individuals - Journal of Human Genetics](https://cdn-ak-scissors.b.st-hatena.com/image/square/2d5d02c372e36985009bb6f7d4f9899edacb9221/height=288;version=1;width=512/https%3A%2F%2Fmedia.springernature.com%2Fm685%2Fspringer-static%2Fimage%2Fart%253A10.1038%252Fs10038-020-00847-0%2FMediaObjects%2F10038_2020_847_Fig1_HTML.png)