The orthologous T6SS-3 loci in Pantoea and Erwinia species. The conserved regions (block I, III and V) are shaded in gray, while non-conserved regions are not shaded. Genes encoding conserved core proteins identified by Boyer et al.  are represented by green arrows while the grey arrows indicate other genes conserved among the Pantoea and Erwinia T6SS-3 loci which were not identified as part of the conserved core. Red arrows represent the hcp and vgrG genes while genes not conserved among the Pantoea and Erwinia species are colored in white.
De Maayer et al. BMC Genomics 2011 12:576 doi:10.1186/1471-2164-12-576