Fig. 3From: Expert curation of the human and mouse olfactory receptor gene repertoires identifies conserved coding regions split across two exonsShort OR gene models are likely to be incomplete due to low expression levels. Violin plots of the mean expression levels for all human protein-coding OR genes grouped by length. The coloured bars at the bottom indicate the range of gene lengths included in each group. The median (circle) ± one standard deviation (vertical line) is indicated in grey. Expression levels are per kilobase (kb) of gene length. Genes with shorter gene models are expressed at significantly lower levels than those of 3 kb or larger, suggesting their models are incompleteBack to article page