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Genomic insights into the vulnerability of sympatric whitefish species flocks

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cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.author-orcid#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtualsource.author-orcideb12a435-8e1c-4dd9-a2b1-ee467c81290a
cris.virtualsource.author-orcidd719c9f7-6f8b-4991-b3f3-923de041a6c9
dc.contributor.authorFeulner, Philine
dc.contributor.authorSeehausen, Ole
dc.date.accessioned2024-10-07T16:50:28Z
dc.date.available2024-10-07T16:50:28Z
dc.date.issued2019-02
dc.description.abstractThe erosion of habitat heterogeneity can reduce species diversity directly but can also lead to the loss of distinctiveness of sympatric species through speciation reversal. We know little about changes in genomic differentiation during the early stages of these processes, which can be mediated by anthropogenic perturbation. Here, we analyse three sympatric whitefish species (Coregonus spp) sampled across two neighbouring and connected Swiss pre‐alpine lakes, which have been differentially affected by anthropogenic eutrophication. Our data set comprises 16,173 loci genotyped across 138 whitefish using restriction‐site associated DNA sequencing (RADseq). Our analysis suggests that in each of the two lakes the population of a different, but ecologically similar, whitefish species declined following a recent period of eutrophication. Genomic signatures consistent with hybridisation are more pronounced in the more severely impacted lake. Comparisons between sympatric pairs of whitefish species with contrasting ecology, where one is shallow benthic and the other one more profundal pelagic, reveal genomic differentiation that is largely correlated along the genome, while differentiation is uncorrelated between pairs of allopatric provenance with similar ecology. We identify four genomic loci that provide evidence of parallel divergent adaptation between the shallow benthic species and the two different more profundal species. Functional annotations available for two of those loci are consistent with divergent ecological adaptation. Our genomic analysis indicates the action of divergent natural selection between sympatric whitefish species in pre‐alpine lakes and reveals the vulnerability of these species to anthropogenic alterations of the environment and associated adaptive landscape.
dc.description.numberOfPages15
dc.description.sponsorshipInstitut für Ökologie und Evolution (IEE)
dc.description.sponsorshipInstitut für Ökologie und Evolution, Aquatische Ökologie
dc.identifier.doi10.7892/boris.122809
dc.identifier.pmid30554444
dc.identifier.publisherDOI10.1111/mec.14977
dc.identifier.urihttps://boris-portal.unibe.ch/handle/20.500.12422/61753
dc.language.isoen
dc.publisherWiley-Blackwell
dc.relation.ispartofMolecular Ecology
dc.relation.issn0962-1083
dc.relation.organizationDCD5A442C150E17DE0405C82790C4DE2
dc.relation.organizationDCD5A442C44BE17DE0405C82790C4DE2
dc.subject.ddc500 - Science::570 - Life sciences; biology
dc.titleGenomic insights into the vulnerability of sympatric whitefish species flocks
dc.typearticle
dspace.entity.typePublication
dspace.file.typetext
dspace.file.typetext
oaire.citation.endPage629
oaire.citation.issue3
oaire.citation.startPage615
oaire.citation.volume28
oairecerif.author.affiliationInstitut für Ökologie und Evolution (IEE)
oairecerif.author.affiliationInstitut für Ökologie und Evolution, Aquatische Ökologie
oairecerif.author.affiliation2#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation2#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation3#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation3#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation4#PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation4#PLACEHOLDER_PARENT_METADATA_VALUE#
unibe.contributor.rolecreator
unibe.contributor.rolecreator
unibe.date.embargoChanged2019-12-17 01:30:05
unibe.date.licenseChanged2019-10-24 00:01:36
unibe.description.ispublishedpub
unibe.eprints.legacyId122809
unibe.journal.abbrevTitleMOL ECOL
unibe.refereedTRUE
unibe.subtype.articlejournal

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