2 Works

Data from: Convergence in organ size but not energy metabolism enzyme activities among wild Lake Whitefish (Coregonus clupeaformis) species pairs

Anne C. Dalziel, Martin Laporte, Clément Rougeux, Helga Guderley & Louis Bernatchez
The repeated evolution of similar phenotypes by similar mechanisms can be indicative of local adaptation, constraints or biases in the evolutionary process. Little is known about the incidence of physiological convergence in natural populations, so here we test whether energy metabolism in ‘dwarf’ and ‘normal’ Lake Whitefish evolves by similar mechanisms. Prior genomic and transcriptomic studies have found that divergence in energy metabolism is key to local adaptation in whitefish species pairs, but that distinct...

Data from: Cline coupling and uncoupling in a stickleback hybrid zone

Timothy H. Vines, Anne C. Dalziel, Arianne Albert, Thor Veen, Patricia Marita Schulte, Dolph Schluter & Arianne Y. K. Albert
Strong ecological selection on a genetic locus can maintain allele frequency differences between populations in different environments, even in the face of hybridization. When alleles at divergent loci come into tight linkage disequilibrium, selection acts on them as a unit and can significantly reduce gene flow. For populations interbreeding across a hybrid zone, linkage disequilibria between loci can force clines to share the same slopes and centers. However, strong ecological selection on a locus can...

Registration Year

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Affiliations

  • Saint Mary's University
    2
  • The University of Texas at Austin
    1
  • University of British Columbia
    1
  • Women's Health Research Institute
    1
  • Université Laval
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