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Captivity and the co-diversification of great ape microbiomes

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  • Alex H. Nishida

    (The University of Texas at Austin
    The University of Texas at Austin)

  • Howard Ochman

    (The University of Texas at Austin
    The University of Texas at Austin)

Abstract

Wild great apes harbor clades of gut bacteria that are restricted to each host species. Previous research shows the evolutionary relationships among several host-restricted clades mirror those of great-ape species. However, processes such as geographic separation, host-shift speciation, and host-filtering based on diet or gut physiology can generate host-restricted bacterial clades and mimic patterns of co-diversification across host species. To gain insight into the distribution of host-restricted taxa, we examine captive great apes living under conditions where sharing of bacterial strains is readily possible. Here, we show that increased sampling of wild and captive apes identifies additional host-restricted lineages whose relationships are not concordant with the host phylogeny. Moreover, the gut microbiomes of captive apes converge through the displacement of strains that are restricted to their wild conspecifics by human-restricted strains. We demonstrate that host-restricted and co-diversifying bacterial strains in wild apes lack persistence and fidelity in captive environments.

Suggested Citation

  • Alex H. Nishida & Howard Ochman, 2021. "Captivity and the co-diversification of great ape microbiomes," Nature Communications, Nature, vol. 12(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25732-y
    DOI: 10.1038/s41467-021-25732-y
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