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dc.contributor.author
Ramoneda, Josep
dc.contributor.author
Le Roux, Johannes J.
dc.contributor.author
Frossard, Emmanuel
dc.contributor.author
Frey, Beat
dc.contributor.author
Gamper, Hannes Andres
dc.date.accessioned
2020-09-28T07:06:40Z
dc.date.available
2020-09-26T19:50:17Z
dc.date.available
2020-09-28T07:06:40Z
dc.date.issued
2020-10
dc.identifier.issn
0168-6496
dc.identifier.issn
1574-6941
dc.identifier.other
10.1093/femsec/fiaa145
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/442886
dc.description.abstract
There is interest in understanding how cultivation, plant genotype, climate and soil conditions influence the biogeography of root nodule bacterial communities of legumes. For crops from regions with relict wild populations, this is of even greater interest because the effects of cultivation on symbiont communities can be revealed, which is of particular interest for bacteria such as rhizobia. Here, we determined the structure of root nodule bacterial communities of rooibos (Aspalathus linearis), a leguminous shrub endemic to South Africa. We related the community dissimilarities of the root nodule bacteria of 18 paired cultivated and wild rooibos populations to pairwise geographical distances, plant ecophysiological characteristics and soil physicochemical parameters. Using next-generation sequencing data, we identified region-, cultivation- and farm-specific operational taxonomic units for four distinct classes of root nodule bacterial communities, dominated by members of the genus Mesorhizobium. We found that while bacterial richness was locally increased by organic cultivation, strong biogeographical differentiation in the bacterial communities of wild rooibos disappeared with cultivation of one single cultivar across its entire cultivation range. This implies that expanding rooibos farming has the potential to endanger wild rooibos populations through the homogenisation of root nodule bacterial diversity. © FEMS 2020.
en_US
dc.language.iso
en
en_US
dc.publisher
Oxford University Press
en_US
dc.title
Geographical patterns of root nodule bacterial diversity in cultivated and wild populations of a woody legume crop
en_US
dc.type
Journal Article
dc.date.published
2020-07-21
ethz.journal.title
FEMS Microbiology Ecology
ethz.journal.volume
96
en_US
ethz.journal.issue
10
en_US
ethz.journal.abbreviated
FEMS microbiol. ecol.
ethz.pages.start
fiaa145
en_US
ethz.size
13 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03427 - Frossard, Emmanuel / Frossard, Emmanuel
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03427 - Frossard, Emmanuel / Frossard, Emmanuel
ethz.date.deposited
2020-09-26T19:50:24Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-09-28T07:06:50Z
ethz.rosetta.lastUpdated
2021-02-15T17:36:06Z
ethz.rosetta.versionExported
true
ethz.COinS
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