Figure 3.

Genetic map of 7 different dnd- encoding genomic islands of E . coli . Same-strand DNA similarity is shaded blue (dark blue-sky blue) while reverse similarity is shaded red (red-light pink). Coding sequences are displayed as arrows. Major features are displayed and are colored to facilitate visualization. Order of genomic islands in the map was arranged according to the phylogenetic tree constructed using the dnd operons. Red alphabet in brackets indicates the subgroup determined based on the immediate genetic environment of the respective dnd operons. Integrase gene is the first element of the dnd-encoding genomic island (GI).