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Here I show clustering of 28 accessions from work published as a preprint in PeerJ. The point was to show that you can distill a dataset containing hundreds of thousands of points into a manageable number of SNPs that can be used as proxies for genome-wide estimates.

You can see that the while using only a handful of markers one is able to reproduce the structure inferred from the genome-wide dataset with only a few dozen informative SNPs.  Thanks to MGC for data sharing

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