A conditional expression map of the Vibrio sp. DAT722 gene cassette array under three different stressors. The schematic cassette array below the histogram indicates cassette positions within the array detected in gDNA, with solid triangles. Cassette positions not detectable with the methodology used, are shown in dotted triangles. Cassettes that are ambiguously located within the array by the methodology used, due to the presence of either multiple copies of the same cassette within the array, or different cassettes of the same size, are indicated by blue rectangles. In the panel above the array diagram, cassettes not detectably expressed are shown in white. Detectably expressed cassettes are shown coloured in either yellow or red. Red cassette positions indicate the treatment in which maximal conditional expression was measured at the 2-fold level. Red triangles indicate the position of cassettes, which though detectable, were never measurably expressed in this work.