Figure 5From: Selection in action: dissecting the molecular underpinnings of the increasing muscle mass of Belgian Blue CattleEvolution of the allelic frequency of significant variants. Evolution of the frequency of the c.2904-2905delAG variant (in red) in MRC2 (causing the Crooked-Tail Syndrome) and the AHAP9 haplotype (in blue) related to the proximal QTL on BTA19 across six cohorts of BBC sires grouped by birth year.Back to article page