Fig. 1

Types of interactions between rye inbred lines and Prs isolates. Macroscopic examination of LR symptoms at 10 days after the inoculation of rye inbred lines, D33, D39 and L318, with compatible and incompatible Prs isolates. The infection types determined using the following 0–4 scale [51] are provided in parentheses: 0 = immune (no visible reaction); 1 = resistant (minute uredinia surrounded by chlorosis or necrosis); 2 = moderately resistant (small pustules surrounded by chlorosis); 3* = moderately susceptible (moderately large pustules surrounded by chlorosis); and 4 = susceptible (moderately large to large pustules with little or no chlorosis); *) for line L318, an infection type “3” was treated as a partially incompatible reaction