2 Works

Data from: A novel method to infer the origin of polyploids from AFLP data reveals that the Alpine polyploid complex of Senecio carniolicus (Asteraceae) evolved mainly via autopolyploidy

Manuela Winkler, Pedro Escobar García, Andreas Gattringer, Michaela Sonnleitner, Karl Hülber, Peter Schönswetter & Gerald M. Schneeweiss
Despite its evolutionary and ecological relevance the mode of polyploid origin has been notoriously difficult to be reconstructed from molecular data. Here, we present a method to identify the putative parents of polyploids and thus to infer the mode of their origin (auto- versus allopolyploidy) from Amplified Fragment Length Polymorphism (AFLP) data. To this end, we use Cohen's d of distances between in silico polyploids, generated within a priori defined scenarios of origin from a...

Data from: Ecological differentiation, lack of hybrids involving diploids, and asymmetric gene flow between polyploids in narrow contact zones of Senecio carniolicus (syn. Jacobaea carniolica, Asteraceae)

Karl Hülber, Michaela Sonnleitner, Jan Suda, Jana Krejčíková, Peter Schönswetter, Gerald M. Schneeweiss & Manuela Winkler
Areas of immediate contact of different cytotypes offer a unique opportunity to study evolutionary dynamics within heteroploid species and to assess isolation mechanisms governing coexistence of cytotypes of different ploidy. The degree of reproductive isolation of cytotypes, i.e., the frequency of heteroploid crosses and subsequent formation of viable and (partly) fertile hybrids, plays a crucial role for the long-term integrity of lineages in contact zones. Here, we assessed fine-scale distribution, spatial clustering and ecological niches...

Registration Year

  • 2016
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  • 2015
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Resource Types

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Affiliations

  • Institute for Interdisciplinary Mountain Research
    2
  • University of Vienna
    2
  • University of Innsbruck
    2
  • University of Natural Resources and Life Sciences
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  • Charles University
    1