fig2

Figure 2. Microbial signatures discovery using the LEfSe algorithm, showing (A) bacterial taxa with statistically significant over-representation among different areas; (B) fungal taxa with statistically significant over-representation among different areas; (C) bacterial taxa with statistically significant over-representation between traditionally and industrially produced sausages; (D) fungal taxa with statistically significant over-representation between traditionally and industrially produced sausages, based on a non-parametric factorial KW sum–rank test, an (unpaired) Wilcoxon rank–sum test, and LDA. The phylogenetic trees map the taxonomic variances of the identified microbial signatures from class (external part of the circle) to species level (internal part of the circle), combined with a list of taxa with significantly increased representation in different sausage groups. KW: Kruskal–Wallis; LDA: linear discriminant analysis.