Fig. 4

Adjusted NIS index for NIS3 in validation population. Twenty-six genotypes were selected from the 3000 genomes for validation of the QTL based on their NIS3 haplotype. The CD203 strain was used for inoculation. Each point corresponds to the adjusted NIS index of one repetition of one genotype calculated as: \( 1-\raisebox{1ex}{$ LSmeanN1$}\!\left/ \!\raisebox{-1ex}{$ LSmeanN0$}\right. \). According to the formula, as values become more negative, there is a stronger effect of nitrogen in increasing susceptibility. Positive values correspond to a decrease of susceptibility. P-Values were obtained from a Student Test