designed based on leucine-rich repeat regions of genes RPS2, Xa21 in rice against Xathomonas compestris pv oryzae, N, and Cf9 in tomato against Cladosporium fulvum, respectively (Naweed Naqvi, IRRI). LRR - leucine-rich repeat motifs (Chen et al 1998. TAG-97-345. doi: 10.1007/s001220050905)