Fig. 4

Bacterial taxonomic composition of bacteriomes in different colorectal tissues (H: healthy, CT: cancer tumor, CA: cancer tumor adjacent, AP: adenomatous polyps, and APA: adenomatous polyps adjacent) in different taxonomic levels (phylum, class, order, family, genus, and species) represented by stacked bar plots. Stacked bar chart for relative abundance of the bacterial (A) phyla-level, (B) class-level, (C) order-level, (D) top 30 abundant families, (E) top 30 abundant genera, and (F) top 50 abundant species in different colorectal tissues. Features with counts smaller than 4 and 10% prevalence filtered as low read counts due to probable sequencing errors or low-level contamination. 10% of the features with the lowest percentages were also excluded using the inter-quantile range (IQR) as a low variance filter