Article
Low genetic and phenotypic divergence in a contact zone between freshwater and marine sticklebacks: gene flow constrains adaptation.
BMC evolutionary biology - 6 Jun 2017
Pedersen Susanne Holst, Ferchaud Anne-Laure, Bertelsen Mia S, Bekkevold Dorte, Hansen Michael M
Abstract excerpt
BACKGROUND: Distinct hybrid zones and phenotypic and genomic divergence is often observed between marine and freshwater threespine sticklebacks (Gasterosteus aculeatus). Nevertheless, cases also exist where marine-freshwater divergence is diffuse despite seemingly similar environmental settings. In order to assess what characterizes these highly different outcomes, we focused on the latter kind of system in the...
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