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Convergence of human and Old World monkey gut microbiomes demonstrates the importance of human ecology over phylogeny.

Katherine Ryan AmatoElizabeth K MallottDaniel McDonaldNathaniel J DominyTony GoldbergJoanna E LambertLarissa SwedellJessica L MetcalfAndres M GomezGillian A O BrittonRebecca M StumpfSteven R LeighRob Knight
Published in: Genome biology (2019)
Given similarities of ancestral human habitats and dietary strategies to those of baboons, these findings suggest that convergent ecologies shaped the gut microbiomes of both humans and cercopithecines, perhaps through environmental exposure to microbes, diet, and/or associated physiological adaptations. Increased inter-individual variation in the human microbiome may be associated with human dietary diversity or the ability of humans to inhabit novel environments. Overall, these findings show that diet, ecology, and physiological adaptations are more important than host-microbe co-diversification in shaping the human microbiome, providing a key foundation for comparative analyses of the role of the microbiome in human biology and health.
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