Genomic organization of the RGA08 haplotypes in M. balbisiana. M. balbisiana B1 and B2 haplotypes corresponding to BAC MbP032N20c and MbP036B13 respectively are represented. Predicted genes, pseudogenes and transposable elements are represented as plain arrowheads with the head indicating the direction of transcription. RGA08 genes coding for CC-NB-LRR proteins are indicated as green boxes with a corresponding letter. Genes tested for expression are labelled with a star. White arrows represent MTERF genes. Other predicted genes in pink arrows are numbered according to sequence annotation. Repetitive elements are represented as black arrows and numbered according to the list in Table 2. RE4 is a low complexity region with no clear structure. The 1 kb duplicated intergenic sequence is in orange boxes. Simple colinear pattern between haplotypes based on sequence similarity (blast2seq, E-value < = 1e-20) is highlighted for genes and intergenic sequences using light pink trapezoids in the flanking regions of the RGA clusters. Syntenic regions within the RGA clusters are highlighted using light green trapezoids. Identified unequal recombination events are highlighted with yellow trapezoids. The RE3 (Mooz) sequence inverted between haplotypes is indicated with twisted connections.