Genetic Variability and Structuring of Arctic Charr (Salvelinus alpinus) Populations in Northern Fennoscandia

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dc.contributor.author Shikano, Takahito
dc.contributor.author Järvinen, Antero
dc.contributor.author Marjamaki, Paula
dc.contributor.author Kahilainen, Kimmo K.
dc.contributor.author Merilä, Juha
dc.date.accessioned 2016-02-26T10:04:01Z
dc.date.available 2016-02-26T10:04:01Z
dc.date.issued 2015-10-15
dc.identifier.citation Shikano , T , Järvinen , A , Marjamaki , P , Kahilainen , K K & Merilä , J 2015 , ' Genetic Variability and Structuring of Arctic Charr ( Salvelinus alpinus ) Populations in Northern Fennoscandia ' , PLoS One , vol. 10 , no. 10 , 0140344 . https://doi.org/10.1371/journal.pone.0140344
dc.identifier.other PURE: 56456744
dc.identifier.other PURE UUID: e3b77bee-bf23-4236-b0fa-00279a5f1182
dc.identifier.other WOS: 000363184600046
dc.identifier.other Scopus: 84949033820
dc.identifier.other ORCID: /0000-0001-9614-0072/work/29056130
dc.identifier.other ORCID: /0000-0002-1539-014X/work/64323470
dc.identifier.uri http://hdl.handle.net/10138/160263
dc.description.abstract Variation in presumably neutral genetic markers can inform us about evolvability, historical effective population sizes and phylogeographic history of contemporary populations. We studied genetic variability in 15 microsatellite loci in six native landlocked Arctic charr (Salvelinus alpinus) populations in northern Fennoscandia, where this species is considered near threatened. We discovered that all populations were genetically highly (mean F-ST approximate to 0.26) differentiated and isolated from each other. Evidence was found for historical, but not for recent population size bottlenecks. Estimates of contemporary effective population size (N-e) ranged from seven to 228 and were significantly correlated with those of historical N-e but not with lake size. A census size (N-C) was estimated to be approximately 300 individuals in a pond (0.14 ha), which exhibited the smallest N-e (i.e. N-e/N-C = 0.02). Genetic variability in this pond and a connected lake is severely reduced, and both genetic and empirical estimates of migration rates indicate a lack of gene flow between them. Hence, albeit currently thriving, some northern Fennoscandian populations appear to be vulnerable to further loss of genetic variability and are likely to have limited capacity to adapt if selection pressures change. en
dc.format.extent 17
dc.language.iso eng
dc.relation.ispartof PLoS One
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject CROSS-SPECIES AMPLIFICATION
dc.subject SALMON SALMO-SALAR
dc.subject MICROSATELLITE LOCI
dc.subject BROWN TROUT
dc.subject POSTGLACIAL COLONIZATION
dc.subject LINKAGE DISEQUILIBRIUM
dc.subject PHYLOGENETIC TREES
dc.subject DIVERSITY ANALYSIS
dc.subject COMPUTER-PROGRAM
dc.subject FREQUENCY DATA
dc.subject 1181 Ecology, evolutionary biology
dc.title Genetic Variability and Structuring of Arctic Charr (Salvelinus alpinus) Populations in Northern Fennoscandia en
dc.type Article
dc.contributor.organization Biosciences
dc.contributor.organization Kilpisjärvi Biological Station
dc.contributor.organization Environmental Sciences
dc.contributor.organization Ecological Genetics Research Unit
dc.contributor.organization Ecology and Evolutionary Biology
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1371/journal.pone.0140344
dc.relation.issn 1932-6203
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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