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. 2016 Jan 19;16:23. doi: 10.1186/s12870-016-0710-y

Fig. 4.

Fig. 4

Plot of the 1st and 2nd components of a PCA analysis of the full data set based on the accession allele frequencies at 567 polymorphic SNP markers. Each point is an accession coloured according to the taxon it is classified as in its passport data