Figure 1: Phylogenetic analysis of plant RDR genes.

(a) Phylogeny of the potato RDR genes with other plant RDRs. White open circles are clade names, black circles are inferred gene duplications, red boxes are Solanum tuberosum sequences and grey boxes are Arabidopsis thaliana sequences. The S. tuberosum RDR sequences found on the Potato Genome Sequencing Consortium (PGSC) database are accompanied by their PGSC coding-sequence number. (b) Rosid-specific RDR7 phylogeny. This enlarged section of (a) shows the Rosid species that possess RDR7 gene sequences.