Fig. 1From: The model cyanobacteria Anabaena sp. PCC 7120 possess an intact but partially degenerated gene cluster encoding gas vesiclesOrganizations of the gvp gene cluster from different species of bacteria. Each alphabet above the arrow represents a gvp gene. Transcription direction of each gene is indicated by the arrow. The gvp genes absent in Anabaena sp. PCC 7120 are shown as grey arrowsBack to article page