Fig. 3

Mean comparison of favourable haplotype numbers in resistant, intermediate and susceptible lines. a: Box plot of the number of favourable linkage disequilibrium (LD) block haplotypes carried by pea lines (without missing haplotypes) from the pea-Aphanomyces collection belonging to the first quartile (25 % lowest values), interquartile (50 % intermediate values) and third quartile (25 % highest values) of coordinates on the first principal component of the multiple factors analysis (MFA.Dim.1). The three groups include pea lines with a high (first quartile), intermediate (interquartile) and low (third quartile) level of resistance. Letters indicate significantly different groups based on mean comparison (Tuckey-HSD, α = 0.05). b: Distribution histogram of MFA.Dim.1 for the pea lines (without missing haplotypes) of the collection. The first quartile (25 % lowest coordinates; dark green) carries the highest number of favourable haplotypes, the interquartile (intermediate values; light green) carries an intermediate number of favourable haplotypes and the third quartile (25 % highest values; light red) carries the lowest number of favourable haplotypes