Fig. 4: QTL maps for three traits in six different populations.

Each graph presents LOD-score profiles computed by interval mapping for the indicated trait: (a) Compactness 31 days after sowing, (b) Hue 31 days after sowing and (c) bolting time). For each trait, the top row shows the QTL maps in full hybrids, comparing wild type with figl1 recq4; the bottom row shows the QTL maps in chromosome substitution lines (CSL_L), comparing wild type with figl1 recq4. “n” = number of plants analyzed in each population. The x-axes are in % of the physical position along the chromosome (Chr.). The y-axes represent the LOD-Score with additive allelic effect direction sign (+/−): a positive (negative) LOD Score indicates that the Ler allele at this position increases (decreases) trait value with respect to the Col allele. Conservative LOD-score thresholds of +/−2.3LOD are represented as dashed lines.