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...
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