Opposing phylogenetic diversity gradients of plant and soil bacterial communities
Plants and soil microbes show parallel patterns of species-level diversity. Diverse plant communities release a wider range of organics that are consumed by more microbial species. We speculated, however, that diversity metrics accounting for the evolutionary distance across community members would reveal opposing patterns between plant and soil bacterial phylogenetic diversity. Plant phylogenetic diversity enhances plant productivity and thus expectedly soil fertility. This, in turn, might reduce bacterial phylogenetic diversity by favouring one (or a few) competitive bacterial clade. We collected topsoils in 15 semi-arid plant patches and adjacent low-cover areas configuring a plant phylodiversity gradient, pyrosequenced the 16S rRNA gene to identify bacterial taxa and analysed soil fertility parameters. Structural equation modelling showed positive effects of both plant richness and phylogenetic diversity on soil fertility. Fertility increased bacterial richness but reduced bacterial phylogenetic diversity. This might be attributed to the competitive dominance of a lineage based on its high relative fitness. This suggests biotic interactions as determinants of the soil bacterial community assembly, while emphasizing the need to use phylogeny-informed metrics to tease apart the processes underlying the patterns of diversity.
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Format: | artículo biblioteca |
Language: | English |
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Royal Society (Great Britain)
2016-02-24
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Subjects: | Fitness differences, Community assembly, Phylogenetic diversity, Proteobacteria, Soil microbessoil fertility, |
Online Access: | http://hdl.handle.net/10261/183343 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007406 |
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dig-cide-es-10261-1833432021-11-22T13:04:04Z Opposing phylogenetic diversity gradients of plant and soil bacterial communities Goberna, M. Navarro-Cano, J. A. Verdú, Miguel Ministerio de Economía y Competitividad (España) Fundación BBVA Verdú, Miguel [0000-0002-9778-7692] Goberna, M. [0000-0001-5303-3429] Fitness differences Community assembly Phylogenetic diversity Proteobacteria Soil microbessoil fertility Soil microbessoil fertility Plants and soil microbes show parallel patterns of species-level diversity. Diverse plant communities release a wider range of organics that are consumed by more microbial species. We speculated, however, that diversity metrics accounting for the evolutionary distance across community members would reveal opposing patterns between plant and soil bacterial phylogenetic diversity. Plant phylogenetic diversity enhances plant productivity and thus expectedly soil fertility. This, in turn, might reduce bacterial phylogenetic diversity by favouring one (or a few) competitive bacterial clade. We collected topsoils in 15 semi-arid plant patches and adjacent low-cover areas configuring a plant phylodiversity gradient, pyrosequenced the 16S rRNA gene to identify bacterial taxa and analysed soil fertility parameters. Structural equation modelling showed positive effects of both plant richness and phylogenetic diversity on soil fertility. Fertility increased bacterial richness but reduced bacterial phylogenetic diversity. This might be attributed to the competitive dominance of a lineage based on its high relative fitness. This suggests biotic interactions as determinants of the soil bacterial community assembly, while emphasizing the need to use phylogeny-informed metrics to tease apart the processes underlying the patterns of diversity. Financial support was provided by the Spanish Ministerio de Economía y Competitividad (R&D Project CGL2014-58333-P), and Fundación BBVA (project Mintegra; I Convocatoria de ayudas de la fundación BBVA a proyectos de investigació). M.G. acknowledges support by the Programa Ramón y Cajal (Ministerio de Economía y Competitividad). Peer reviewed 2019-06-05T08:03:40Z 2019-06-05T08:03:40Z 2016-02-24 artículo http://purl.org/coar/resource_type/c_6501 Proceedings of the Royal Society of London - B 283 (1825): 20153003 (2016) 0962-8452 http://hdl.handle.net/10261/183343 10.1098/rspb.2015.3003 1471-2954 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007406 26888037 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-58333-P http://dx.doi.org/10.1098/rspb.2015.3003 Sí none Royal Society (Great Britain) |
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Fitness differences Community assembly Phylogenetic diversity Proteobacteria Soil microbessoil fertility Soil microbessoil fertility Fitness differences Community assembly Phylogenetic diversity Proteobacteria Soil microbessoil fertility Soil microbessoil fertility |
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Fitness differences Community assembly Phylogenetic diversity Proteobacteria Soil microbessoil fertility Soil microbessoil fertility Fitness differences Community assembly Phylogenetic diversity Proteobacteria Soil microbessoil fertility Soil microbessoil fertility Goberna, M. Navarro-Cano, J. A. Verdú, Miguel Opposing phylogenetic diversity gradients of plant and soil bacterial communities |
description |
Plants and soil microbes show parallel patterns of species-level diversity. Diverse plant communities release a wider range of organics that are consumed by more microbial species. We speculated, however, that diversity metrics accounting for the evolutionary distance across community members would reveal opposing patterns between plant and soil bacterial phylogenetic diversity. Plant phylogenetic diversity enhances plant productivity and thus expectedly soil fertility. This, in turn, might reduce bacterial phylogenetic diversity by favouring one (or a few) competitive bacterial clade. We collected topsoils in 15 semi-arid plant patches and adjacent low-cover areas configuring a plant phylodiversity gradient, pyrosequenced the 16S rRNA gene to identify bacterial taxa and analysed soil fertility parameters. Structural equation modelling showed positive effects of both plant richness and phylogenetic diversity on soil fertility. Fertility increased bacterial richness but reduced bacterial phylogenetic diversity. This might be attributed to the competitive dominance of a lineage based on its high relative fitness. This suggests biotic interactions as determinants of the soil bacterial community assembly, while emphasizing the need to use phylogeny-informed metrics to tease apart the processes underlying the patterns of diversity. |
author2 |
Ministerio de Economía y Competitividad (España) |
author_facet |
Ministerio de Economía y Competitividad (España) Goberna, M. Navarro-Cano, J. A. Verdú, Miguel |
format |
artículo |
topic_facet |
Fitness differences Community assembly Phylogenetic diversity Proteobacteria Soil microbessoil fertility Soil microbessoil fertility |
author |
Goberna, M. Navarro-Cano, J. A. Verdú, Miguel |
author_sort |
Goberna, M. |
title |
Opposing phylogenetic diversity gradients of plant and soil bacterial communities |
title_short |
Opposing phylogenetic diversity gradients of plant and soil bacterial communities |
title_full |
Opposing phylogenetic diversity gradients of plant and soil bacterial communities |
title_fullStr |
Opposing phylogenetic diversity gradients of plant and soil bacterial communities |
title_full_unstemmed |
Opposing phylogenetic diversity gradients of plant and soil bacterial communities |
title_sort |
opposing phylogenetic diversity gradients of plant and soil bacterial communities |
publisher |
Royal Society (Great Britain) |
publishDate |
2016-02-24 |
url |
http://hdl.handle.net/10261/183343 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007406 |
work_keys_str_mv |
AT gobernam opposingphylogeneticdiversitygradientsofplantandsoilbacterialcommunities AT navarrocanoja opposingphylogeneticdiversitygradientsofplantandsoilbacterialcommunities AT verdumiguel opposingphylogeneticdiversitygradientsofplantandsoilbacterialcommunities |
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1777665553060593664 |