Fig. 2

Bacterial blight resistance evaluation of 340 rice accessions inoculated with representative Xoo strains from China and Philippines. a Hierarchical cluster of accessions and strains based on lesion length (LL). b Number of accessions showing different reactions to four Xoo strains. R (LL < 5 cm), MR (5 cm ≤ LL < 10 cm), MS (10 cm ≤ LL < 15 cm), S (LL ≥ 15 cm). c Boxplots for LL of four Xoo strains in three major subgroups. Box edges represent the 0.25 and 0.75 quantiles with median values indicated by bold lines. * and *** denote significant differences in mean LL among subpopulations at P < 0.05, 0.001, respectively