Figure 3

Distribution of SSR motifs. A - Distribution of the most abundant SSR motifs in oak BESs. The values on the y-axis indicate the fraction of SSRs displaying the motifs listed on the x-axis. SSR motifs were identified with MREPS 2.5. All the dinucleotide motifs are represented. Only the five most abundant tri-, tetra-, penta- and hexanucleotide motifs are listed. B - Distribution of di-, tri-, tetra-, penta- and hexanucleotide motifs identified by MREPS, using the same parameters in 10 BAC end sequences libraries published in the NCBI dbGSS database, normalized for cross-species comparisons. C- Distribution of the most abundant SSR motifs found in oak BES in 10 other BES datasets: Carita papaya (50,661 BESs), Prunus persica (47,311 BESs), Citrus clementina (46,000 BESs), Populus trichocarpa (13,249 BESs), Brassica oleracea (85,416 BESs), Glycine max (325,952 BESs), Solanum lycopersicum (399,114 BESs), Brassica rapa (198,490 BESs), Solanum tuberosum (140,540 BESs), Cucumis sativus (63,935 BESs). The values on the y-axis indicate the fraction of SSRs displaying the motifs listed on the x-axis. SSR motifs were identified with MREPS 2.5, using the same parameters as for oak BESs. The values have been normalized for cross-species comparisons.