Fig. 2

Effect of population structure on the response to stripe rust in the collection of 245 spring bread wheat genotypes: a Infection type (IT) for the race Yr19-71, b IT for the race Yr20-161, c Disease Severity (DS), and d Area Under Disease Progress Curve (AUDPC). Box plots show trait distribution and compare the levels of stripe rust among the four subpopulations. Boxes indicate the middle 50% of the data and the median (solid horizontal line). The whiskers show the range of adjacent values; dots indicate outliers. The subpopulation represented by the same lowercase letter(s) are not significantly different at p = 0.01