Fig. 3.

Triatomine alpha- and beta-diversity. a Dots show alpha-diversity estimators per sample with their overall distribution displayed as a box-plot. Abbreviations: GutC, gut samples from T. cruzi-challenged insects; Gon, gonad samples of non-challenged insects; GonC, gonad samples from T. cruzi-challenged insects. Asterisks indicate the significant P-values of Mann-Whitney U-tests conducted between paired samples (T. cruzi-challenged × non-challenged); *P < 0.05, **P < 0.01. b Redundancy analysis of bacterial community structure in triatomine bug samples. Independent variables are host species, insect gender, tissue and T. cruzi-challenge. Arrow length indicates the strength of correlation between variables and ordination scores. c Distribution of OTUs in T. cruzi-challenged and non-challenged samples. Bars show the proportion of 16S sequences per OTU found in each group