6 Works

Data from: Quantitative genetic inheritance of morphological divergence in a lake-stream stickleback ecotype pair: implications for reproductive isolation

Daniel Berner, Renaud Kaeuffer, Anne-Catherine Grandchamp, Joost A. M. Raeymaekers, Katja Räsänen & Andrew P. Hendry
Ecological selection against hybrids between populations occupying different habitats might be an important component of reproductive isolation during the initial stages of speciation. The strength and directionality of this barrier to gene flow depends on the genetic architecture underlying divergence in ecologically relevant phenotypes. We here present line cross analyses of inheritance for two key foraging-related morphological traits involved in adaptive divergence between stickleback ecotypes residing parapatrically in lake and stream habitats within the Misty...

Data from: Evolution in extreme environments: replicated phenotypic differentiation in livebearing fish inhabiting sulfidic springs

Michael Tobler, Maura Palacios, Lauren J Chapman, Igor Mitrofanov, David Bierbach, Martin Plath, Lenin Arias-Rodriguez, Francisco J García De León & Mariana Mateos
We investigated replicated ecological speciation in the livebearing fishes Poecilia mexicana and P. sulphuraria (Poeciliidae), which inhabit freshwater habitats and have also colonized multiple sulfidic springs in southern Mexico. These springs exhibit extreme hypoxia and high concentrations of hydrogen sulfide, which is lethal to most metazoans. We used phylogenetic analyses to test whether springs were independently colonized, performed phenotypic assessments of body and gill morphology variation to identify convergent patterns of trait differentiation, and conducted...

Data from: Within-season synchrony of a masting conifer enhances seed escape

Devan W. Archibald, Andrew G. McAdam, Stan Boutin, Quinn E. Fletcher & Murray M. Humphries
Predator satiation resulting from interannual reproductive synchrony has been widely documented in masting plants, but how reproductive synchrony within a year influences seed escape is poorly understood. We evaluated whether the intra-annual reproductive synchrony of individual white spruce trees (Picea glauca) increased seed escape from their primary predispersal seed predator, North American red squirrels (Tamiasciurus hudsonicus). Trees with cones that matured synchronously relative to those of other trees within red squirrel territories were significantly more...

Data from: Phylogeny of Leavenworthia S-alleles suggests unidirectional mating system evoution and enhanced positive selection following an ancient population bottleneck

Adam C. Herman, Jeremiah W. Busch & Daniel J. J. Schoen
The adoption of self-fertilization from an ancestral outcrossing state is one of the most common evolutionary transitions in the flowering plants. In the mustard family, outcrossing is typically enforced by sporophytic self-incompatibility (SI), but there are also many self-compatible species. The genus Leavenworthia contains taxa that either possess or lack SI. Here we present data showing that SI is associated with strict outcrossing and that there is widespread trans-specific sequence polymorphism at the locus involved...

Data from: Convergence and non-convergence in ecological, phenotypic, and genetic divergence across replicate population pairs of lake and stream stickleback

Renaud Kaeuffer, Catherine Lynn Peichel, Daniel I. Bolnick & Andrew P. Hendry
Convergent (or parallel) evolution provides strong evidence for a deterministic role of natural selection: similar phenotypes evolve when independent populations colonize similar environments. In reality, however, independent populations in similar environments always show some differences: some non-convergent evolution is present. It is therefore important to explicitly quantify the convergent and non-convergent aspects of trait variation, and to investigate the ecological and genetic explanations for each. We performed such an analysis for threespine stickleback (Gasterosteus aculeatus)...

Data from: Exploring possible human influences on the evolution of Darwin's finches

Luis Fernando De León, Joost A.M. Raeymaekers, Eldredge Bermingham, Jeffrey Podos, Anthony Herrel & Andrew P. Hendry
Humans are an increasingly common influence on the evolution of natural populations. Potential arenas of influence include altered evolutionary trajectories within populations and modifications of the process of divergence among populations. We consider this second arena in the medium ground finch (Geospiza fortis) on Santa Cruz Island, Galápagos, Ecuador. Our study compared the G. fortis population at a relatively undisturbed site, El Garrapatero, to the population at a severely disturbed site, Academy Bay, which is...

Registration Year

  • 2011
    6

Resource Types

  • Dataset
    6

Affiliations

  • McGill University
    6
  • KU Leuven
    2
  • Howard Hughes Medical Institute
    1
  • University of Massachusetts Amherst
    1
  • Fred Hutchinson Cancer Research Center
    1
  • University of Alberta
    1
  • Texas A&M University
    1
  • Oklahoma State University
    1
  • University of Guelph
    1
  • European University Viadrina
    1