Fig. 7.—

ML phylogenetic trees of the Hydnora visseri plastid genes. A phylogenetic tree has been estimated for a concatenated data set of 20 plastid genes, based on alignments published by Jansen et al. (2007). The tree was estimated with RAxML (Stamatakis 2006), applying the rapid bootstrapping algorithm (1,000 bootstrap replicates). The topology of Jansen et al. (2007) was used as a starting tree (-t function in RAxML). The cladogram (left) verifies a magnoliid origin of the Hydnora plastid genes. Bootstrap values are plotted above nodes. The scale of the phylogram is in substitutions per site. The phylogram (right) shows a much higher number of substitutions for the Hydnora sequences compared with the other taxa.