PFGE fingerprints of the virioplankton community collected from the bathypelagic waters of the subtropical North Atlantic and the corresponding computer-generated banding patterns. Lanes A and B are molecular size markers (sizes are shown in kb). Lane 1 denotes the sample from 4,000 m, lane 2 from 2,750 m, and lane 3 from 2,400 m of depth. See Table 2 for sampling locations and basic characteristics of collected water.