Figure 2: Collinearity between three paralogous castor bean genomic regions and their putative orthologs in other dicot genomes.

(a) An example of a conserved paralogous triplication in the castor bean genome. (b–e) Putative orthologous gene pairs are shown as colored lines connecting the castor bean scaffolds (noted as Rc:scaffold number) to chromosomes or scaffolds in the other dicot genome. In most cases, one copy of the paralogous castor bean genes corresponds to two genes in poplar (b), one gene in grapevine (c) and four genes in A. thaliana (d). The castor bean–papaya relationship (e) is inconclusive. Numbers around the circles correspond to linkage group numbers (b), chromosome numbers (c and d) or scaffold numbers (e). Grapevine scaffolds that were mapped to chromosomes but their exact location is unknown are noted with an 'r' (random). The size of the castor bean genomic regions is proportional in all circles. Additional castor bean paralogous regions and their corresponding orthologs from other dicots are shown in Supplementary Figure 3.