QTL for V. longisporum -related traits in the A. thaliana (Bur×L er ) RIL population. White bars represent chromosomes with marker positions indicated in cM. Coloured bars delimit the confidence intervals of QTL as follows: Light yellow: Systemic colonization, % colonized shoot segments, exp. 1. Dark yellow: Systemic colonization, % colonized shoot segments, exp. 2. Red: Stunting resistance, performance height, exp. 1. Dark green: Chlorosis, number of yellow leaves, exp. 1. Medium green: Chlorosis, % yellow leaves, exp. 1. Light green: Chlorosis, difference in yellow leaves between mock-inoculated and V. longisporum-inoculated plants, exp. 1. Black lines within the bars stand for LRS peak positions. Upward arrows indicate that the paternal ecotype (Ler) was the origin of the increasing allele; downward arrows stand for Bur as the source of the increasing allele. QTL from the most representative dataset are displayed in Figure 1. QTL names are written next to the bars. For reproducibility and further QTL information, see Additional file 3.