MdBV genomic segments B, C, and J are integrated into adult male M. demolitor and CiE1 cells 21 days after infection with MdBV. Panels A to C show the designs and outcomes of PCR-based integration assays for segments B, C, and J, respectively. The schematics to the left show each genomic segment, with the inner circles indicating segment sizes (bp) and the outer bands indicating the locations of primers used to amplify different domains of each segment. To the right of each schematic are the PCR products generated using the domain-specific primers and DNA from MdBV, adult male M. demolitor, or 21-day-postinfection CiE1 cells. Numbers above each lane correspond to the domains shown in each schematic.