Cluster analysis of samples from Experiment C. Pearson correlation analysis of universal DGGE gel profiles from cecal content of rats fed with either control- or 7% pectin diet for four weeks. Bands indicated by arrows represents Anaeroplasma (1), Clostridium sp. (2), Clostridiales (3), Bacteroides sp. (4, 6 and 7), and Alistipes (5). Metric scale indicates degree of similarity in percent.