AUTHOR=Villacís Juan F. , López-Rosero Andrea , Bustillos Juan José , Cadena Matías , Yumiseva César A. , Grijalva Mario J. , Villacís Anita G. 

TITLE=Bacterial microbiota from the gut of Rhodnius ecuadoriensis, a vector of Chagas disease in Ecuador's Central Coast and Southern Andes

JOURNAL=Frontiers in Microbiology

VOLUME=15

YEAR=2024

URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2024.1464720

DOI=10.3389/fmicb.2024.1464720

ISSN=1664-302X

ABSTRACT=<sec><title>Introduction</title><p>Chagas disease is a neglected tropical disease caused by the parasite <italic>Trypanosoma cruzi</italic> that is transmitted mainly by the feces of infected Triatomines. In Ecuador the main vector is <italic>Rhodnius ecuadoriensis</italic> which is distributed in several provinces of the country. More than 40% of these insects in the wild have <italic>T. cruzi</italic> as part of their intestinal microbiota. For this reason, the objective of this research was to characterize the intestinal bacterial microbiota of <italic>R. ecuadoriensis</italic>.</p></sec><sec><title>Methods</title><p>The methodology used was based on the DNA extraction of the intestinal contents from the wild collected insects (adults and nymphs V), as well as the insects maintained at the insectary of the CISeAL. Finally, the samples were analyzed by metagenomics extensions based on the different selected criteria.</p></sec><sec><title>Results</title><p>The intestinal microbiota of <italic>R. ecuadoriensis</italic> presented a marked divergence between laboratory-raised and wild collected insects. This difference was observed in all stages and was similar between insects from Loja and Manabí. A large loss of microbial symbionts was observed in laboratory-raised insects.</p></sec><sec><title>Discussion</title><p>This study is a crucial first step in investigating microbiota interactions and advancing new methodologies.</p></sec>