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A test for within-lake niche differentiation in the nine-spined sticklebacks (Pungitius pungitius).


ABSTRACT: Specialization for the use of different resources can lead to ecological speciation. Accordingly, there are numerous examples of ecologically specialized pairs of fish "species" in postglacial lakes. Using a polymorphic panel of single nucleotide variants, we tested for genetic footprints of within-lake population stratification in nine-spined sticklebacks (Pungitius pungitius) collected from three habitats (viz. littoral, benthic, and pelagic) within a northern Swedish lake. Analyses of admixture, population structure, and relatedness all supported the conclusion that the fish from this lake form a single interbreeding unit.

SUBMITTER: Calboli FC 

PROVIDER: S-EPMC4979704 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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A test for within-lake niche differentiation in the nine-spined sticklebacks (Pungitius pungitius).

Calboli Federico C F FC   Byström Pär P   Merilä Juha J  

Ecology and evolution 20160614 14


Specialization for the use of different resources can lead to ecological speciation. Accordingly, there are numerous examples of ecologically specialized pairs of fish "species" in postglacial lakes. Using a polymorphic panel of single nucleotide variants, we tested for genetic footprints of within-lake population stratification in nine-spined sticklebacks (Pungitius pungitius) collected from three habitats (viz. littoral, benthic, and pelagic) within a northern Swedish lake. Analyses of admixtu  ...[more]

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