Fig. 2
From: Region-specific expression of young small-scale duplications in the human central nervous system
Distribution of CNS region-specific genes across ranges of expression values. Barplots show a the number of expressed genes and b the percentage of region-specific genes for different expression bins. For each gene, we first calculated its expression value per CNS region by averaging over all the samples associated with each region. We then selected as reference value for each gene, the maximum of these averages of expression across the CNS regions. Gene expression values are given in RPKM (on a log2 scale) and each bin corresponds to 1 unit of the log2(RPKM + 1) values. The open square bracket for each bin means that the start value is included and the round bracket means that the end value is excluded from the bin. The last bin groups all gene expressions higher or equal to 127 RPKM