Figure 2
From: Selection for tameness modulates the expression of heme related genes in silver foxes
Gene expression levels of heme related genes in fox brain. Average mRNA levels of hemoglobin alpha (HBA), beta (HBB) and epsilon (HBE) chains, and heme binding protein (HEBP1) are shown for four groups of foxes, Vulpes vulpes. Wild = wild red foxes (N = 12), NS = non selected farm foxes (N = 17), S = farm foxes selected for tame behavior (N = 9), Cross = off-spring from crosses and back crosses of NS and S foxes (N = 12). Least square means and standard errors are given.