Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat

Abstract Despite the large morphological and physiological changes that plants have undergone through domestication, little is known about their impact on their microbiome. Here we characterized rhizospheric bacterial and fungal communities as well as the abundance of N-cycling microbial guilds acro...

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Autores principales:	Aymé Spor, Agathe Roucou, Arnaud Mounier, David Bru, Marie-Christine Breuil, Florian Fort, Denis Vile, Pierre Roumet, Laurent Philippot, Cyrille Violle
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f345cd47ec1740b89f1807e91af10c44
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spelling	oai:doaj.org-article:f345cd47ec1740b89f1807e91af10c442021-12-02T16:26:37ZDomestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat10.1038/s41598-020-69175-92045-2322https://doaj.org/article/f345cd47ec1740b89f1807e91af10c442020-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-69175-9https://doaj.org/toc/2045-2322Abstract Despite the large morphological and physiological changes that plants have undergone through domestication, little is known about their impact on their microbiome. Here we characterized rhizospheric bacterial and fungal communities as well as the abundance of N-cycling microbial guilds across thirty-nine accessions of tetraploid wheat, Triticum turgidum, from four domestication groups ranging from the wild subspecies to the semi dwarf elite cultivars. We identified several microbial phylotypes displaying significant variation in their relative abundance depending on the wheat domestication group with a stronger impact of domestication on fungi. The relative abundance of potential fungal plant pathogens belonging to the Sordariomycetes class decreased in domesticated compared to wild emmer while the opposite was found for members of the Glomeromycetes, which are obligate plant symbionts. The depletion of nitrifiers and of arbuscular mycorrhizal fungi in elite wheat cultivars compared to primitive domesticated forms suggests that the Green Revolution has decreased the coupling between plant and rhizosphere microbes that are potentially important for plant nutrient availability. Both plant diameter and fine root percentage exhibited the highest number of associations with microbial taxa, highlighting their putative role in shaping the rhizosphere microbiota during domestication. Aside from domestication, significant variation of bacterial and fungal community composition was found among accessions within each domestication group. In particular, the relative abundances of Ophiostomataceae and of Rhizobiales were strongly dependent on the host accession, with heritability estimates of ~ 27% and ~ 25%, indicating that there might be room for genetic improvement via introgression of ancestral plant rhizosphere-beneficial microbe associations.Aymé SporAgathe RoucouArnaud MounierDavid BruMarie-Christine BreuilFlorian FortDenis VilePierre RoumetLaurent PhilippotCyrille ViolleNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aymé Spor Agathe Roucou Arnaud Mounier David Bru Marie-Christine Breuil Florian Fort Denis Vile Pierre Roumet Laurent Philippot Cyrille Violle Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
description	Abstract Despite the large morphological and physiological changes that plants have undergone through domestication, little is known about their impact on their microbiome. Here we characterized rhizospheric bacterial and fungal communities as well as the abundance of N-cycling microbial guilds across thirty-nine accessions of tetraploid wheat, Triticum turgidum, from four domestication groups ranging from the wild subspecies to the semi dwarf elite cultivars. We identified several microbial phylotypes displaying significant variation in their relative abundance depending on the wheat domestication group with a stronger impact of domestication on fungi. The relative abundance of potential fungal plant pathogens belonging to the Sordariomycetes class decreased in domesticated compared to wild emmer while the opposite was found for members of the Glomeromycetes, which are obligate plant symbionts. The depletion of nitrifiers and of arbuscular mycorrhizal fungi in elite wheat cultivars compared to primitive domesticated forms suggests that the Green Revolution has decreased the coupling between plant and rhizosphere microbes that are potentially important for plant nutrient availability. Both plant diameter and fine root percentage exhibited the highest number of associations with microbial taxa, highlighting their putative role in shaping the rhizosphere microbiota during domestication. Aside from domestication, significant variation of bacterial and fungal community composition was found among accessions within each domestication group. In particular, the relative abundances of Ophiostomataceae and of Rhizobiales were strongly dependent on the host accession, with heritability estimates of ~ 27% and ~ 25%, indicating that there might be room for genetic improvement via introgression of ancestral plant rhizosphere-beneficial microbe associations.
format	article
author	Aymé Spor Agathe Roucou Arnaud Mounier David Bru Marie-Christine Breuil Florian Fort Denis Vile Pierre Roumet Laurent Philippot Cyrille Violle
author_facet	Aymé Spor Agathe Roucou Arnaud Mounier David Bru Marie-Christine Breuil Florian Fort Denis Vile Pierre Roumet Laurent Philippot Cyrille Violle
author_sort	Aymé Spor
title	Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
title_short	Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
title_full	Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
title_fullStr	Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
title_full_unstemmed	Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
title_sort	domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/f345cd47ec1740b89f1807e91af10c44
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Domestication-driven changes in plant traits associated with changes in the assembly of the rhizosphere microbiota in tetraploid wheat

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