Fig. 6
From: Using strain-resolved analysis to identify contamination in metagenomics data
12 infant samples were contaminated with Zymo DNA. A) Clustergram displays the sharing of Zymo-associated strains between infant samples and Zymo positive controls. Each row corresponds to an infant sample that had ≥1 Zymo strain. The first column on the left displays the number of Zymo strains in each infant sample. The remaining 8 columns correspond to the 8 Zymo bacteria (from left to right, these 8 bacteria were arranged from the most to the least abundant) and they were colored by the presence (dark purple) and absence (colorless) of the corresponding bacterium within each infant sample. “*” at the bottom four rows refers to samples that are not contaminated by the Zymo standard. B) A representative extraction plate (P3) showing two Zymo contaminated samples (gray bubbles). Merged circles represent duplicated samples that were merged post DNA extraction