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. 2013 Mar 4;8(3):e57438. doi: 10.1371/journal.pone.0057438

Figure 4. Ability to distinguish between populations using varying numbers of SNPs.

Figure 4

Principle Component Analysis (PCA) of GWAFFs based on SNP positions having a minimum coverage of 5 in all samples of PstI library. PCA was performed using a series of randomly selected SNP positions to evaluate the effect of the number of SNP positions on ability to distinguish between populations; (A) 500, (B) 1000, (C) 1500, (D) 2000, (E) 4000, (F) 6000, (G) 8000, and (H) 10000. Colours correspond to the varieties; Beatrice (black), Chardin (Green), Stolon (grey), Greenway (sky blue), Glenveagh (dark blue), Sponsor (yellow), Monigta (purple), and Bronzyn (red).