Fig. 4
From: Genetic dissection of Sharka disease tolerance in peach (P. persica L. Batsch)
Box-plots of markers-trait association for the three SNPs detected by GWA analysis (SNP_IGA_185608, SNP_IGA_214703 and SNP_IGA_366639) with symptoms intensity classes as inferred by the non-parametric Kruskal-Wallis K-test (p < 0.01) in a panel of 73 accessions. The frequency of the four classes of symptoms severity (asymptomatic, 0, to severe, 3) is shown in the top right panel