PC1 PC2 SampleID -2.56101548952171 5.8020252670863 S-R1 -1.43094949289261 -2.48379536026616 S-T1 -1.51505904486519 -1.1057591022498 S-S1 -1.35817977950761 -2.05629024275319 S-R2 7.47117666848475 0.83471867190164 S-T2 -0.605972861697635 -0.990899233718791 S-S2