Fig. 2

Cluster of resistance genes in melon, phylogenetic relationships and orthology with cucumber and watermelon. Resistance genes are represented by vertical lines, in red if they have an ortholog in any of the other species, or black. Only resistance genes are shown for clarity. Direction of genome assemblies are left to right, except for cucumber which has been reoriented for practical reasons. The transciption direction that is opposite is marked with a black arrow next to the gene. Phylogeny was with NBS domains (see text). Branch lengths would give information on the phylogenetic relationships between genes but here the original trees were modified for graphical reasons. Purple bars and lines between watermelon and melon are orthologous relationships found in Plaza 3.0