Fig. 4

Dominance effects in gene expression. a Bar charts show the average heritabilities of gene expression variation for additive (\({\mathrm{V}}_{\mathrm{a}}\):blue) and dominance (\({\mathrm{V}}_{\mathrm{d}}:\) red) effects per species and tissue. b–e Bar charts of the numbers of additive (blue), partial-dominant (sky blue), dominant (purple), and over-dominant (red) eQTLs in different tissues in b F2 pigs (liver and muscle), c HS rats (gene expression of amygdala and heart), e HS rats (transcripts expression of amygdala and heart), and d HS mice (hippocampus, liver, and lung). Light shades: counts of suggestive significant eQTLs. Darker shaded bars with numbers indicate the whole genome significant eQTLs