Figure 2

Ordination showing the first two axes of the principal coordinates analysis (PCO) of ASV composition. Symbols are colour coded and represent samples from different treatments as shown in the legend on the right side of the figure. Grey symbols represent weighted averages scores for ASVs. The symbol size is proportional to group abundance (number of sequence reads). The legend symbols represent the following groups: Cont: Control; Ecol: E. coli DH5α; Subt: P. rubra SubTr2. Only significant vectors are represented.