Fig. 2

Meta-analysis of GWAS results for internal organ weights and carcass traits from five populations. Manhattan plots for GWAS of heart weight (a), liver weight (b), spleen weight (c), kidney weight (d) and carcass weight (e) from five populations. Meta-analysis of single-population GWAS was performed by combining the p values of the GWAS results from the five populations. In the Manhattan plots, negative log₁₀ p values of the qualified SNPs are plotted against their genomic positions; the red and green dots represent SNPs that exceeded suggestive and 5 % genome-wide significance thresholds, respectively; solid lines indicate the 5 % genome-wide Bonferroni-corrected threshold