Skip to main content

Research Repository

Advanced Search

Gut microbiome composition is associated with spatial structuring and social interactions in semi-feral Welsh mountain ponies

Antwis, RE; Lea, JMD; Unwin, B; Shultz, S

Gut microbiome composition is associated with spatial structuring and social interactions in semi-feral Welsh mountain ponies Thumbnail


Authors

RE Antwis

JMD Lea

B Unwin

S Shultz



Abstract

Background: Microbiome composition is linked to host functional traits including metabolism and immune function. Drivers of microbiome composition are increasingly well-characterised; however, evidence of group-level microbiome convergence is limited and may represent a multi-level trait (i.e. across individuals and groups), whereby heritable phenotypes are influenced by social interactions. Here we investigate the influence of spatial structuring and social interactions on the gut microbiome composition of Welsh mountain ponies.
Results: Here we show that semi-feral ponies exhibit variation in microbiome composition according to band membership, along with considerable within-individual variation. Spatial structuring was also identified within bands, suggesting that despite communal living, social behaviours still influence microbiome composition. Indeed, we show that specific interactions (i.e. mother-offspring and stallion-mare) lead to more similar microbiomes, further supporting the notion that individuals influence the microbiome composition of one another and ultimately, the group. Foals exhibited different microbiome composition to sub-adults and adults, most likely related to differences in diet.
Conclusions: We provide novel evidence that microbiome composition is structured at multiple levels within populations of social mammals and thus, may form a unit on which selection can act. High levels of within-individual variation in microbiome composition, combined with the potential for social interactions to influence microbiome composition, suggest the direction of microbiome selection may be influenced by the individual members present in the group. Although the functional implications of this requires further research, these results lend support to the idea that multi-level selection can act on microbiomes.

Citation

Antwis, R., Lea, J., Unwin, B., & Shultz, S. (2018). Gut microbiome composition is associated with spatial structuring and social interactions in semi-feral Welsh mountain ponies. Microbiome, 6(207), https://doi.org/10.1186/s40168-018-0593-2

Journal Article Type Article
Acceptance Date Nov 7, 2018
Online Publication Date Nov 22, 2018
Publication Date Nov 22, 2018
Deposit Date Nov 8, 2018
Publicly Available Date Nov 23, 2018
Journal Microbiome
Publisher Springer Verlag
Volume 6
Issue 207
DOI https://doi.org/10.1186/s40168-018-0593-2
Publisher URL https://doi.org/10.1186/s40168-018-0593-2
Related Public URLs https://microbiomejournal.biomedcentral.com/

Files

Pony-microbiome-revision-clean.pdf (460 Kb)
PDF

Version
Author's accepted manuscript







Downloadable Citations