Distribution of tags and gene expression between experimental and control groups. The black and gray columns indicate the distribution of tags and gene expression in bacteria- and mock-challenged groups, respectively. The distribution of tags matches the distribution of genes for both groups. Furthermore, an increase in tags or gene expression is accompanied by a decrease in the frequencies of tags or genes.
Xiang et al. BMC Genomics 2010 11:472 doi:10.1186/1471-2164-11-472