
Density of single nucleotide polymorphisms (SNPs) detected following alignment of (A) A. thaliana Landsberg erecta (Gan et al. 2011) and (B) progenitor reads to the Col-0 (TAIR 9) reference genome sequence. Histograms of SNPs along the length of chromosome 5 are shown. The Col-0 segment of progenitor chromosome 5 (containing the rgl3-4 T-DNA insertion) is clearly visible in (B), between 3 Mb and 6.25 Mb, where the number of variants (versus TAIR 9) falls close to baseline. The site of the RGL3 locus is shown in the Col-0 DNA segment (in gray; see inset).











