4 Works

Data from: Inferring species networks from gene trees in high-polyploid North American and Hawaiian violets (Viola, Violaceae)

Thomas Marcussen, Kjetill S. Jakobsen, Jiří Danihelka, Harvey E. Ballard, Kim Blaxland, Anne K. Brysting & Bengt Oxelman
The phylogenies of allopolyploids take the shape of networks and cannot be adequately represented as bifurcating trees. Especially for high-polyploids (i.e., organisms with more than six sets of nuclear chromosomes), the signatures of gene homoeolog loss, deep coalescence and polyploidy may become confounded, with the result that gene trees may be congruent with more than one species network. Herein, we obtained the most parsimonious species network by objective comparison of competing scenarios involving polyploidization and...

Data from: Evolution of stenophagy in spiders (Araneae): evidence based on the comparative analysis of spider diets

Stano Pekár, Jonathan A. Coddington & Todd A. Blackledge
Stenophagy (narrow diet breadth) represents an extreme of trophic specialization in carnivores, but little is known about the forces driving its evolution. We used spiders, the most diversified group of terrestrial predators, to investigate whether stenophagy 1) promoted diversification, 2) was phylogenetically conserved and evolutionarily derived state, and 3) was determined either by geographical distribution and foraging guild. We utilized published data on the prey of almost 600 species. Six categories of stenophagy were found:...

Data from: Inferring species networks from gene trees in high-polyploid North American and Hawaiian violets (Viola, Violaceae)

Thomas Marcussen, Kjetill S. Jakobsen, Jiří Danihelka, Harvey E. Ballard, Kim Blaxland, Anne K. Brysting & Bengt Oxelman
The phylogenies of allopolyploids take the shape of networks and cannot be adequately represented as bifurcating trees. Especially for high-polyploids (i.e., organisms with more than six sets of nuclear chromosomes), the signatures of gene homoeolog loss, deep coalescence and polyploidy may become confounded, with the result that gene trees may be congruent with more than one species network. Herein, we obtained the most parsimonious species network by objective comparison of competing scenarios involving polyploidization and...

Data from: Evolution of stenophagy in spiders (Araneae): evidence based on the comparative analysis of spider diets

Stano Pekár, Jonathan A. Coddington & Todd A. Blackledge
Stenophagy (narrow diet breadth) represents an extreme of trophic specialization in carnivores, but little is known about the forces driving its evolution. We used spiders, the most diversified group of terrestrial predators, to investigate whether stenophagy 1) promoted diversification, 2) was phylogenetically conserved and evolutionarily derived state, and 3) was determined either by geographical distribution and foraging guild. We utilized published data on the prey of almost 600 species. Six categories of stenophagy were found:...

Registration Year

  • 2011
    4

Resource Types

  • Dataset
    4

Affiliations

  • Masaryk University
    4
  • National Museum of Natural History
    2
  • Ohio University
    2
  • University of Gothenburg
    2
  • University of Oslo
    2
  • University of Akron
    2