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Signature of post-glacial expansion and genetic structure at the northern range limit of the speckled wood butterfly
Department of Molecular Biosciences,The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden; Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden.ORCID iD: 0000-0001-7777-4133
Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden.
Department of Bioinformatics and Genetics, Swedish Museum of Natural History, Stockholm, Sweden; Swedish Museum of Natural History,Stockholm Sweden; Department of Zoology, Stockholm University, Stockholm, Sweden.
Behavioural Ecology and Conservation Group, Biodiversity Research Centre, Earth and Life Institute, Université Catholique de Louvain (UCL), Louvain-la-Neuve, Belgium.
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2014 (English)In: Biological Journal of the Linnean Society, ISSN 0024-4066, E-ISSN 1095-8312, Vol. 113, no 1, p. 136-148Article in journal (Refereed) Published
Abstract [en]

The post-glacial recolonisation of northern Europe has left distinct signatures in the genomes of many organisms, both due to random demographic processes and divergent natural selection. However, information on differences in genetic variation in conjunction with patterns of local adaptations along latitudinal gradients is often lacking. In this study, we examine genetic diversity and population structure in the speckled wood butterfly Pararge aegeria in northern Europe to investigate the species post-glacial recolonisation history and discuss how this may have affected its life-history evolution. We collected 209 samples and analysed genetic variation in nine microsatellite loci. The results demonstrated a more pronounced population structure in northern Europe compared with populations further south, as well as an overall decrease in genetic diversity with latitude, likely due to founder effects during the recolonisation process. Coalescent simulations coupled with approximate Bayesian computation suggested that central Scandinavia was colonised from the south, rather than from the east. In contrast to further south, populations at the northern range margin are univoltine expressing only one generation per year. This suggests either that univoltinism evolved independently on each side of the Baltic Sea, or that bivoltinism evolved in the south after northern Europe was recolonised.

Place, publisher, year, edition, pages
Oxford University Press, 2014. Vol. 113, no 1, p. 136-148
Keywords [en]
Bayesian analyses, coalescent simulations, demographic inference, microsatellites, Pararge aegeria, population structure, post-glacial recolonisation
National Category
Evolutionary Biology
Research subject
Molecular Biology; Genetics; Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-109982DOI: 10.1111/bij.12327ISI: 000340585700011Scopus ID: 2-s2.0-84906321904OAI: oai:DiVA.org:oru-109982DiVA, id: diva2:1815998
Funder
Swedish Research Council Formas, 621-2010-5341Swedish Research CouncilStockholm UniversityEuropean Regional Development Fund (ERDF)
Note

Fundinga Agencies:

the Swedish Research Council

The strategic research programme EKOKLIM at Stock-holm University

The Académie Louvain

The Estonian Research Council

The European Union through the European Regional Development Fund (Center of ExcellenceFIBIR)

Available from: 2023-11-30 Created: 2023-11-30 Last updated: 2023-12-01Bibliographically approved

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Tison, Jean-Luc

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