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dc.contributor.author
Salathé, Rahel M.
dc.contributor.author
Schmid-Hempel, Paul
dc.date.accessioned
2018-08-16T09:28:23Z
dc.date.available
2017-06-14T17:56:02Z
dc.date.available
2018-08-16T09:28:23Z
dc.date.issued
2011-08-10
dc.identifier.issn
1932-6203
dc.identifier.other
10.1371/journal.pone.0022054
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/159850
dc.identifier.doi
10.3929/ethz-b-000159850
dc.description.abstract
The genotypic structure of parasite populations is an important determinant of ecological and evolutionary dynamics of host-parasite interactions with consequences for pest management and disease control. Genotypic structure is especially interesting where multiple hosts co-exist and share parasites. We here analyze the natural genotypic distribution of Crithidia bombi, a trypanosomatid parasite of bumblebees (Bombus spp.), in two ecologically different habitats over a time period of three years. Using an algorithm to reconstruct genotypes in cases of multiple infections, and combining these with directly identified genotypes from single infections, we find a striking diversity of infection for both data sets, with almost all multi-locus genotypes being unique, and are inferring that around half of the total infections are resulting from multiple strains. Our analyses further suggest a mixture of clonality and sexuality in natural populations of this parasite species. Finally, we ask whether parasite genotypes are associated with host species (the phylogenetic hypothesis) or whether ecological factors (niche overlap in flower choice) shape the distribution of parasite genotypes (the ecological hypothesis). Redundancy analysis demonstrates that in the region with relatively high parasite prevalence, both host species identity and niche overlap are equally important factors shaping the distribution of parasite strains, whereas in the region with lower parasite prevalence, niche overlap more strongly contributes to the distribution observed. Overall, our study underlines the importance of ecological factors in shaping the natural dynamics of host-parasite systems.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
PLOS
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
The Genotypic Structure of a Multi-Host Bumblebee Parasite Suggests a Role for Ecological Niche Overlap
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
ethz.journal.title
PLoS ONE
ethz.journal.volume
6
en_US
ethz.journal.issue
8
en_US
ethz.journal.abbreviated
PLoS ONE
ethz.pages.start
e22054
en_US
ethz.size
11 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.publication.place
San Francisco, CA
ethz.publication.status
published
en_US
ethz.leitzahl
03330 - Schmid-Hempel, Paul
en_US
ethz.leitzahl.certified
03330 - Schmid-Hempel, Paul
ethz.date.deposited
2017-06-14T18:05:28Z
ethz.source
ECIT
ethz.identifier.importid
imp59364e6d2688d62592
ethz.ecitpid
pub:64582
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-18T13:46:08Z
ethz.rosetta.lastUpdated
2024-02-02T05:41:04Z
ethz.rosetta.versionExported
true
ethz.COinS
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