<p>Principal component analysis on PC1-3 from each dataset. This analysis determined which principal components organize samples from different datasets similarly. The plot shows that PC1 from the algae, bacteria, archaea and diatom datasets are similar and distinct from PC1 in the fungal dataset. PC2 and 3 are similar across all datasets as demonstrated by similar values for PC1, which in this analysis explains 63.8% of the total variance.</p
