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Fig. 5 | BMC Evolutionary Biology

Fig. 5

From: Patterns of rapid diversification in heteroploid Knautia sect. Trichera (Caprifoliaceae, Dipsacoideae), one of the most intricate taxa of the European flora

Fig. 5

Snapshots of estimated ancestral node areas in the Maximum Clade Credibility tree (obtained with BEAST) of combined ITS and plastid datasets of Knautia at different time horizons as visualised using the software SPREAD. The starting point of diversification is indicated with an asterisk in the upper left figure, the 80 % highest posterior density areas for nodes are indicated as grey polygons, and the time scale of diversification is indicated in million years before present in the upper right corner in each panel. Distribution of land in the corresponding periods is indicated by green polygons in the two upper and the left middle panels (from Rögl [81]: Figs. 8 and 12 for the two upper panels, and from Meulenkamp and Sissingh [85]: Fig. 7 for the left middle panel). The coloured lines show the diversification of Knautia sections: black, section Trichera; yellow, section Knautia; red, section Tricheroides. The distribution of K. sect. Trichera is indicated by a dashed line in the right lower panel

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