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  Eco-Genomic analysis of the poleward range expansion of the wasp spider Argiope bruennichi shows rapid adaptation and genomic admixture

Krehenwinkel, H., Rödder, D., & Tautz, D. (2015). Eco-Genomic analysis of the poleward range expansion of the wasp spider Argiope bruennichi shows rapid adaptation and genomic admixture. Global Change Biology, 21, 4320-4332. doi:10.1111/gcb.13042.

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 Creators:
Krehenwinkel, Henrik1, Author           
Rödder, Dennis, Author
Tautz, Diethard1, Author           
Affiliations:
1Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445635              

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Free keywords: climate modeling; genomic analysis; range expansion; spider; transcriptomic analysis
 Abstract: Poleward range expansions are commonly attributed to global change, but could alternatively be
driven by rapid evolutionary adaptation. A well-documented example of a range expansion during the past decades is provided by the European wasp spider Argiope bruennichi. Using ecological niche
modeling, thermal tolerance experiments and a genome-wide analysis of gene expression
divergence, we show that invasive populations have adapted to novel climatic conditions in the
course of their expansion. Their climatic niche shift is mirrored in an increased cold tolerance and a
population-specific and functionally differentiated gene expression response. We generated an
Argiope reference genome sequence and used population genome re-sequencing to assess genomic
changes associated with the new climatic adaptations. We find clear genetic differentiation and a
significant admixture with alleles from East Asian populations in the invasive Northern European
populations. Population genetic modeling suggests that at least some of these introgressing alleles
have contributed to the new adaptations during the expansion. Our results thus confirm the notion
that range expansions are not a simple consequence of climate change, but are accompanied by fast
genetic changes and adaptations that may be fuelled through admixture between long separated
lineages.

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Language(s): eng - English
 Dates: 2015-06-052015-03-302015-07-012015-11-022015
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1111/gcb.13042
 Degree: -

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Title: Global Change Biology
Source Genre: Journal
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Publ. Info: Oxford, UK : Blackwell Science
Pages: - Volume / Issue: 21 Sequence Number: - Start / End Page: 4320 - 4332 Identifier: ISSN: 1354-1013
CoNE: https://pure.mpg.de/cone/journals/resource/954925618107