Additional T6SS loci in Pantoea sp. aB-valens and Erwinia billingiae Eb661. Genes encoding proteins with the conserved domains identified by Boyer et al.  are indicated by green arrows. 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