FIG. 1.

Dendrogram representation of the TTGE profiles of 16S rRNa gene and rRNA amplicons (obtained using primers for the V6 to V8 regions) from fecal samples of nine UC patients and nine healthy controls. The dendrogram represents a statistically optimal representation of the similarities between TTGE profiles based on the matrix of Pearson correlation coefficients and by applying the unweighted pair group method using arithmetic averages. RNA- and DNA-derived TTGE profiles from a given patient did not cluster together, except for two patients with UC (UC1 and UC7). Samples tended to cluster on the basis of their clinical origin (UC versus control).