Fig. 3

Chromosomal locations and allelic effects of three QTLs for P. brassicae egg-induced cell death (Pbc) in B. rapa. A LOD score of chromosomes A02, A03 and A06 from MQM mapping of HR-like cell death size induced by Pieris eggs on 160 RILs. Labels indicate the closest marker to the peak LOD score. LOD threshold is indicated with a dashed horizontal line (2.59 after 1000 permutations at 5% error rate). Marks on the x-axis indicate the position of makers on the genetic map. Coloured boxes above markers indicate the 1.5-LOD confidence interval of each QTL. B Effect plots of each QTL. Cell death size across 160 RILs grouped by the parental allele (L58, red; R-o-18, blue). Black diamonds represent mean cell death size of all RILs within each allelic group