2 Works

Data from: Standing chromosomal variation in Lake Whitefish species pairs: the role of historical contingency and relevance for speciation

Anne-Marie Dion-Côté, Radka Symonová, Fabien C. Lamaze, Šárka Pelikánová, Petr Ráb & Louis Bernatchez
The role of chromosome changes in speciation remains a debated topic, although demographic conditions associated with divergence should promote their appearance. We tested a potential relationship between chromosome changes and speciation by studying two Lake Whitefish (Coregonus clupeaformis) lineages that recently colonized postglacial lakes following allopatry. A dwarf limnetic species evolved repeatedly from the normal benthic species, becoming reproductively isolated. Lake Whitefish hybrids experience mitotic and meiotic instability, which may result from structurally divergent chromosomes....

Data from: Highly conserved Z and molecularly diverged W chromosomes in the fish genus Triportheus (Characiformes, Triportheidae)

C.F. Yano, L.A.C. Bertollo, T. Ezaz, V. Trifonov, A. Sember, T. Liehr & M.B. Cioffi
The main objectives of this study were to test: (1) whether the W-chromosome differentiation matches to species’ evolutionary divergence (phylogenetic concordance) and (2) whether sex chromosomes share a common ancestor within a congeneric group. The monophyletic genus Triportheus (Characiformes, Triportheidae) was the model group for this study. All species in this genus so far analyzed have ZW sex chromosome system, where the Z is always the largest chromosome of the karyotype, whereas the W chromosome...

Registration Year

  • 2016
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Resource Types

  • Dataset
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Affiliations

  • Institute of Animal Physiology and Genetics
    2
  • Federal University of São Carlos
    1
  • Jena University Hospital
    1
  • University of Canberra
    1
  • Université Laval
    1
  • University of Innsbruck
    1