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Does diversity beget diversity in microbiomes?

Microbes are embedded in complex communities where they engage in a wide array of intra- and inter-specific interactions. The extent to which these interactions drive or impede microbiome diversity is not well understood. Historically, two contrasting hypotheses have been suggested to explain how sp...

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Autores principales: Madi, Naïma, Vos, Michiel, Murall, Carmen Lia, Legendre, Pierre, Shapiro, B Jesse
Formato: Online Artículo Texto
Lenguaje:English
Publicado: eLife Sciences Publications, Ltd 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7755399/
https://www.ncbi.nlm.nih.gov/pubmed/33215610
http://dx.doi.org/10.7554/eLife.58999
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author Madi, Naïma
Vos, Michiel
Murall, Carmen Lia
Legendre, Pierre
Shapiro, B Jesse
author_facet Madi, Naïma
Vos, Michiel
Murall, Carmen Lia
Legendre, Pierre
Shapiro, B Jesse
author_sort Madi, Naïma
collection PubMed
description Microbes are embedded in complex communities where they engage in a wide array of intra- and inter-specific interactions. The extent to which these interactions drive or impede microbiome diversity is not well understood. Historically, two contrasting hypotheses have been suggested to explain how species interactions could influence diversity. ‘Ecological Controls’ (EC) predicts a negative relationship, where the evolution or migration of novel types is constrained as niches become filled. In contrast, ‘Diversity Begets Diversity’ (DBD) predicts a positive relationship, with existing diversity promoting the accumulation of further diversity via niche construction and other interactions. Using high-throughput amplicon sequencing data from the Earth Microbiome Project, we provide evidence that DBD is strongest in low-diversity biomes, but weaker in more diverse biomes, consistent with biotic interactions initially favouring the accumulation of diversity (as predicted by DBD). However, as niches become increasingly filled, diversity hits a plateau (as predicted by EC).
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spelling pubmed-77553992020-12-23 Does diversity beget diversity in microbiomes? Madi, Naïma Vos, Michiel Murall, Carmen Lia Legendre, Pierre Shapiro, B Jesse eLife Ecology Microbes are embedded in complex communities where they engage in a wide array of intra- and inter-specific interactions. The extent to which these interactions drive or impede microbiome diversity is not well understood. Historically, two contrasting hypotheses have been suggested to explain how species interactions could influence diversity. ‘Ecological Controls’ (EC) predicts a negative relationship, where the evolution or migration of novel types is constrained as niches become filled. In contrast, ‘Diversity Begets Diversity’ (DBD) predicts a positive relationship, with existing diversity promoting the accumulation of further diversity via niche construction and other interactions. Using high-throughput amplicon sequencing data from the Earth Microbiome Project, we provide evidence that DBD is strongest in low-diversity biomes, but weaker in more diverse biomes, consistent with biotic interactions initially favouring the accumulation of diversity (as predicted by DBD). However, as niches become increasingly filled, diversity hits a plateau (as predicted by EC). eLife Sciences Publications, Ltd 2020-11-20 /pmc/articles/PMC7755399/ /pubmed/33215610 http://dx.doi.org/10.7554/eLife.58999 Text en © 2020, Madi et al http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use and redistribution provided that the original author and source are credited.
spellingShingle Ecology
Madi, Naïma
Vos, Michiel
Murall, Carmen Lia
Legendre, Pierre
Shapiro, B Jesse
Does diversity beget diversity in microbiomes?
title Does diversity beget diversity in microbiomes?
title_full Does diversity beget diversity in microbiomes?
title_fullStr Does diversity beget diversity in microbiomes?
title_full_unstemmed Does diversity beget diversity in microbiomes?
title_short Does diversity beget diversity in microbiomes?
title_sort does diversity beget diversity in microbiomes?
topic Ecology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7755399/
https://www.ncbi.nlm.nih.gov/pubmed/33215610
http://dx.doi.org/10.7554/eLife.58999
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