Fig. 8From: Identification of genomic regions affecting production traits in pigs divergently selected for feed efficiencySlopes of the linear regression equations of the allele frequencies on the nine generations. Slopes were calculated in each line, for all SNP-QTL identified with Global-GWAS (in grey) and Lines-GWAS (in black). Four situations (differentiated by different labels) were identified according to the significance of the slope (different from zero with p < 0.05 with a Wald test) in one or the two linesBack to article page