Figure 1.

Genetic organization of SPI1 (A) and SPI2 (B). The genes encoding structural proteins are in grey, and the genes that code for transcriptional regulators are in black. The deletions are represented by the black line above the graphs.

Dieye et al. BMC Microbiology 2009 9:3   doi:10.1186/1471-2180-9-3
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