Tetracycline-like resistome of ancient human guts
2018
Abstract Tetracyclines were discovered over 70 years ago and their use resulted in the emergence of tetracycline-resistance microorganisms; however, it has been hypothesized that tetracycline-resistance may have originated in the environment, and that determinants were transferred to the human gut microbiota. Ancient microbiomes represent an opportunity to explore the transmission of tetracycline-resistance determinants from the environment to humans. In the present study, tetracycline-like resistomes of three pre-Inca/Inca (10–15th centuries), and five Italian nobility (15–16th centuries) mummies were characterized using high-throughput sequencing. Sequences exhibited low homology to present-day determinants. Results may aid in the understanding of the evolution of tetracycline-resistance.
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