Promoter distributions for each species. (A) Homo sapiens, (B) Drosophila melanogaster, (C) Oryza sativa and (D) Arabidopsis thaliana. Each point represents the center of weight from a promoter pattern. Red color areas represent denser clusters of promoters. (E-J) superposition between promoter distributions. Red color areas represent conserved promoter sequences.
Gagniuc and Ionescu-Tirgoviste BMC Genomics 2012 13:512 doi:10.1186/1471-2164-13-512