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Figure S2. Heatmap of perennial ryegrass LG1 over six full-sib families. A Kruskal-Wallis test was performed on each marker to identify significant regions for heading. Using the perennial ryegrass genome zipper [26, 30] we identified a putative gene order for markers on LG1. These data were used to construct the heatmap for each family. A perennial ryegrass transcriptome-based genetic linkage map upon which GenomeZipper was based was used as reference to construct LG1 [26, 27] and placed above the heatmap. Each bar in the heatmap represents region between two genetic markers from the linkage map. The median Kruskal-Wallis test statistic was calculated for markers binned between markers on the genetic linkage map and used to construct the heatmap. Color of the heatmap illustrates the test-statistic of the Kruskal-wallis analysis. (PDF 31 kb)

Figure S6. Phylogenetic tree of candidate heading genes PHYA, PHYB and PHYC. The evolutionary history was inferred by using the Maximum Likelihood method based on the JTT matrix-based model [67]. The tree is mid-point rooted, drawn to scale, with branch lengths proportional to the number of substitutions per site. All positions containing gaps and missing data were eliminated. Evolutionary analyses were conducted in MEGA 6.06 [66]. All the associated Lolium and Arabidopsis proteins were highlighted. (PDF 59 kb)

Figure S3. Heatmap of perennial ryegrass LG3 over six full-sib families. A Kruskal-Wallis test was performed on each marker to identify significant regions for heading. Using the perennial ryegrass genome zipper [26, 30] we identified a putative gene order for markers on LG3. These data were used to construct the heatmap for each family. A perennial ryegrass transcriptome-based genetic linkage map upon which GenomeZipper was based was used as reference to construct LG3 [26, 27] and placed above the heatmap. Each bar in the heatmap represents region between two genetic markers from the linkage map. The median Kruskal-Wallis test statistic was calculated for markers binned between markers on the genetic linkage map and used to construct the heatmap. Putative ortholog of LpGI, was identified in the phylogenetic analysis and placed onto LG3 using genetic positions from genome zipper. The genetic positions of these orthologs were extrapolated over the heatmap. Color of the heatmap illustrates the test-statistic of the Kruskal-wallis analysis. (PDF 26 kb)

Figure S5. Heatmap of perennial ryegrass LG6 over six full-sib families. A Kruskal-Wallis test was performed on each marker to identify significant regions for heading. Using the perennial ryegrass genome zipper [26, 30] we identified a putative gene order for markers on LG6. These data were used to construct the heatmap for each family. A perennial ryegrass transcriptome-based genetic linkage map upon which GenomeZipper was based was used as reference to construct LG6 [26, 27] and placed above the heatmap. Each bar in the heatmap represents region between two genetic markers from the linkage map. The median Kruskal-Wallis test statistic was calculated for markers binned between markers on the genetic linkage map and used to construct the heatmap. Putative ortholog of LpCRY2 was identified in the phylogenetic analysis and placed onto LG6 using genetic positions from genome zipper. The genetic positions of these orthologs were extrapolated over the heatmap. Color of the heatmap illustrates the test-statistic of the Kruskal-wallis analysis. (PDF 35 kb)

Physical map of the R2 region combining the location of genetic markers anchored to the region, to the location of genomic sequences and R-genes. The physical location of the sequence of genetic markers used to map quantitative and qualitative resistance at the R2 region is represented on the top of the figure (STM3016 from Milbourne et al. [42]; T1430, C2_At5g04810, TG123, TG370_F, T437_R, cLPT5-B19 from Bombarely et al.[43]; Th21 from Park et al. [44], C237 from Moloney et al.[39]; 11_4_f, 107O01_52, 40SSR2_f from Destefanis et al. unpublished results). Three potato genotypes (HB, DM and RH from the top to the bottom) are separated from the orthologous tomato region by the measuring scale. BAC and scaffold sequences are shown as solid lines, gaps are displayed as dotted lines. R2GHs are represented as filled boxes of assigned orientation. Red boxes represent full length open reading frames; black boxes designate analyzed pseudogenes, while grey boxes are pseudogenes not included in the analysis. The dotplot was obtained from the alignment of the R2 sequence (accession FJ536325) and the potato or tomato BAC/scaffold sequences. Putative orthologous pairs of R2GHs are inter-connected by dotted lines. Transposable elements are represented on the sequences as triangles of assigned orientation. Light gray-shaded areas cover three R-gene clusters, the proximal cluster C, followed by cluster B and the distal cluster A. The small cluster specific to DM, for which there is no apparent orthologous cluster in tomato (and for which we have no coverage in RH and HB) is illustrated on the right. The figure is drawn to scale. (PDF 197 kb)