Vertical transmission of sponge microbiota is inconsistent and unfaithful

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Show simple item record Björk, JR en Díez-Vives, C en Astudillo-García, C en Archie, EA en Montoya, JM en 2020-02-12T23:31:58Z en 2019-08 en
dc.identifier.citation Nature ecology & evolution 3(8):1172-1183 Aug 2019 en
dc.identifier.issn 2397-334X en
dc.identifier.uri en
dc.description.abstract Co-evolutionary theory predicts that if beneficial microbial symbionts improve host fitness, they should be faithfully transmitted to offspring. More recently, the hologenome theory of evolution predicts resemblance between parent and offspring microbiomes and high partner fidelity between host species and their vertically transmitted microbes. Here, we test these ideas in multiple coexisting host species with highly diverse microbiota, leveraging known parent-offspring pairs sampled from eight species of wild marine sponges (Porifera). We found that the processes governing vertical transmission were both neutral and selective. A neutral model was a better fit to larval (R2 = 0.66) than to the adult microbiota (R2 = 0.27), suggesting that the importance of non-neutral processes increases as the sponge host matures. Microbes that are enriched above neutral expectations in adults were disproportionately transferred to offspring. Patterns of vertical transmission were, however, incomplete: larval sponges shared, on average, 44.8% of microbes with their parents, which was not higher than the fraction they shared with nearby non-parental adults. Vertical transmission was also inconsistent across siblings, as larval sponges from the same parent shared only 17% of microbes. Finally, we found no evidence that vertically transmitted microbes are faithful to a single sponge host species. Surprisingly, larvae were as likely to share vertically transmitted microbes with larvae from other sponge species as they were with their own species. Our study demonstrates that common predictions of vertical transmission that stem from species-poor systems are not necessarily true when scaling up to diverse and complex microbiomes. en
dc.format.medium Print-Electronic en
dc.language eng en
dc.relation.ispartofseries Nature ecology & evolution en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri en
dc.subject Animals en
dc.subject Porifera en
dc.subject Bacteria en
dc.subject Biodiversity en
dc.subject Phylogeny en
dc.subject Microbiota en
dc.title Vertical transmission of sponge microbiota is inconsistent and unfaithful en
dc.type Journal Article en
dc.identifier.doi 10.1038/s41559-019-0935-x en
pubs.issue 8 en
pubs.begin-page 1172 en
pubs.volume 3 en
dc.rights.holder Copyright: The author en
pubs.end-page 1183 en
pubs.publication-status Published en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 777566 en Science en Biological Sciences en
dc.identifier.eissn 2397-334X en
pubs.record-created-at-source-date 2020-02-14 en
pubs.dimensions-id 31285574 en

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