Fig. 5From: Spatial sexual dimorphism of X and Y homolog gene expression in the human central nervous system during early male developmentSignal density maps in the spinal cord and medulla oblongata sections from female and male embryos hybridized with PCDH11X/Y and NLGNX/Y. The distributions of Y and X signals in different tissue sections are displayed as kernel density estimation plots where Y signal density is displayed in red and X signal density in cyan. The intensity of the colour reflects the density of the signal. Overlap in signal densities results in a mixed colour, whereas equal proportion of Y and X results in white colour. The outline of the tissue is indicated by a dashed white line. Orientation of the SC tissues is ventral down and dorsal up. The signal density in the female spinal cord is displayed in a for PCDH11X and in b for NLGN4X. c, d Signal density in the female medulla oblongata for PCDH11X and NLGN4X, respectively. e Signal density of PCDH11X/Y in the male spinal cord is shown individually for the two homologs as well as a plot of the two transcript densities combined. NLGN4X/Y is displayed in the same way on f. Signal densities in the male medulla oblongata are shown in g and h for PCDH11X/Y and NLGN4X/YBack to article page