Fig. 4From: Multicopy gene family evolution on primate Y chromosomesGene copy numbers for each macaque sample among all seven AG loci assayed by qPCR. The points show the estimated mean copy number and lines depict standard errors, except for the rhesus macaque (M. mulatta) where the copy numbers from the Y-chromosome project [22] have been included as a reference. The black dashed lines represent relevant threshold values used for inferring discrete copy numbers from the continuous qPCR data. The lines and points are coloured by species, as indicated in the symbol key on the rightBack to article page