Figure 8

Bacterial composition identified by 16S ribosomal pyrosequencing in Rhodnius prolixus midgut infected with Trypanosoma rangeli . Long-term experiment showing bacterial composition at the family levels. Pyrosequencing 454 experiments of anterior midgut preparations from R. prolixus 5^th instar nymphs 7 days after feeding (DAF) on blood without parasites. Previously, 4^th instar nymphs were fed on inactivated blood with or without 1 × 10⁶ epimastigotes/mL of T. rangeli. Each bar graph presents the mean number of sequence reads assigned to a given bacterial family in four insect samples. Others: represent families with only one or two sequences (Pseudomonadaceae, Comamonadaceae, Rhodobacteraceae, Phyllobacteriaceae, Bradyrhizobiaceae, Staphylococcaceae, Bacillaceae, Nitrospiraceae, Flavobacteriaceae). Means were compared using t-test or Mann–Whitney test; *p < 0.05.