Fig. 2

a Dendrogram obtained by a hierarchical clustering analysis based on genome proportion data of Copia- and Gypsy-related clusters (as obtained by hybrid clustering using RepeatExplorer) of different Helianthus species. Asterisks indicate multiscale bootstrap resampling (only values >60% are given). The bar represents the genetic distance. b Maximum composite likelihood phylogram of the same Helianthus species based on ETS sequences isolated by Timme et al. (2007). Asterisks indicate multiscale bootstrap resampling (only values >60% are given). The bar represents the genetic distance. Colours indicate the different analysed sections: pink for Divaricati, light blue for Helianthus and green for Agrestis section. Acronyms as defined in Table 1