Fig. 2
From: Genome-wide association analysis of heifer livability and early first calving in Holstein cattle
GWAS results of heifer livability (n = 11,562) and early calving (n = 10,700) based on bulls with imputed sequence variants. (A) Quantile–quantile (QQ) plot for heifer livability. (B) Manhattan plot for heifer livability. (C) QQ plot for early calving. (D) Manhattan plot for early calving. The red horizontal lines correspond to the genome-wide significance threshold