6 Works

Data from: Habitat selection predicts genetic relatedness in an alpine ungulate

Aaron B. A. Shafer, Joseph M. Northrup, Kevin S. White, Mark S. Boyce, Steeve D. Côté & David W. Coltman
Landscape heterogeneity plays an integral role in shaping ecological and evolutionary processes. Despite links between the two disciplines, ecologists and population geneticists have taken different approaches to evaluating habitat selection, animal movement, and gene flow across the landscape. Ecologists commonly use statistical models such as resource selection functions (RSFs) to identify habitat features disproportionately selected by animals, while population genetic approaches model genetic differentiation according to the distribution of habitat variables. We combined ecological and...

Data from: Historical introgression and the role of selective vs. neutral processes in structuring nuclear genetic variation (AFLP) in a circumpolar marine fish, the capelin (Mallotus villosus)

Gabriel J Colbeck, Julie Turgeon, Pascal Sirois & Julian J Dodson
The capelin (Mallotus villosus) is a widespread marine fish species for which previous work has identified geographically distinct mtDNA clades, the frontiers of which are well within adult and larval dispersal capabilities. Here, we use AFLPs to test for the presence of nuclear gene flow among clades. In addition, we evaluate genetic structuring within one clade, the Northwest Atlantic (NWA). We found that each of the mtDNA clades corresponds with a unique nuclear DNA genetic...

Data from: Population genomics of wild and laboratory zebrafish (Danio rerio)

Andrew R Whiteley, Anuradha Bhat, Emilia P Martins, Richard L Mayden, M Arunachalam, Silva Uusi-Heikkilä, A.T.A. Ahmed, Jiwan Shrestha, Matthew Clark, Derek Stemple & Louis Bernatchez
Understanding a wider range of genotype-phenotype associations can be achieved through ecological and evolutionary studies of traditional laboratory models. Here, we conducted the first large-scale geographic analysis of genetic variation within and among wild zebrafish (Danio rerio) populations occurring in Nepal, India, and Bangladesh and we genetically compared wild populations to several commonly used lab strains. We examined genetic variation at 1,832 polymorphic EST-based SNPs and the cytb mitochondrial gene in 13 wild populations and...

Data from: Patterns of colonization and spread in the fungal spruce pathogen Onnia tomentosa

Hugo Germain, Marie-Josée Bergeron, Louis Bernier, Gaston Laflamme & Richard C Hamelin
The basidiomycetous fungus Onnia tomentosa is one of the most widespread root rot pathogens in North America. Although the disease is more severe on spruce and pine trees, this pathogen can infect several coniferous species. In order to study the population structure of O. tomentosa, we harvested 180 basidiocarps in a 45-year-old white spruce plantation in western Quebec in autumn 1997, and extracted DNA directly from individual basidiocarps. Using a combination of spatial coordinates and...

Data from: Regional divergence and mosaic spatial distribution of two closely related damselfly species (Enallagma hageni and Enallagma ebrium)

Audrey Bourret, Mark A. McPeek & Julie Turgeon
North American Enallagma damselflies radiated during the Pleistocene, and species differ mainly by reproductive structures. Although morphologically very different, Enallagma hageni and Enallagma ebrium are genetically very similar. Partitioning of genetic variation (AFLP), isolation by distance and clustering analyses indicate that these morphospecies are locally differentiated genetically. Spatial analyses show that they are rarely sympatric at local sites, and their distributions form a mosaic of patches where one is clearly dominant over hundreds of square...

Data from: Strong and consistent natural selection associated with armour reduction in sticklebacks

Arnaud Le Rouzic, Kjartan Østbye, Tom O. Klepaker, Thomas F. Hansen, Louis Bernatchez, Dolph Schluter & Leif Asbjørn Vøllestad
Measuring the strength of natural selection is tremendously important in evolutionary biology, but remains a challenging task. In this work, we analyse the characteristics of selection for a morphological change (lateral-plate reduction) in the threespine stickleback Gasterosteus aculeatus. Adaptation to freshwater, leading to the reduction or loss of the bony lateral armor, has indeed occurred in parallel on numerous occasions in this species. Completely-plated and low-plated sticklebacks were introduced into a pond, and the phenotypic...

Registration Year

  • 2011
    6

Resource Types

  • Dataset
    6

Affiliations

  • Université Laval
    6
  • University of British Columbia
    2
  • University of Massachusetts Amherst
    1
  • Université du Québec à Chicoutimi
    1
  • University of Alberta
    1
  • Indiana University
    1
  • Leibniz Institute of Freshwater Ecology and Inland Fisheries
    1
  • Saint Louis University
    1
  • University of Oslo
    1
  • Manonmaniam Sundaranar University
    1