Fig. 3

QTL scan for weight dataset 1 (3.a), dataset 2 (3.b), dataset 3 (3.c) and dataset 4 (3.d). Genome-wide scan at regular intervals (20–30 CM) of the Atlantic salmon linkage map for QTLs affecting freshwater weight, performed on the wild/domesticated interface. Horizontal lines indicate the 5 and 1% genome-wide significance threshold, based upon the likelihood ratio between a HGLM fitted at each genomic position with and without a QTL effect. Vertical lines separate chromosomes