Structural organization and synteny of proviral segments of GfBV and GiBV. Detailed diagrams of proviral loci for GfBV and GiBV are depicted. For each, the corresponding segment number of the encapsidated viral segment is given for each segment, with the > or < symbol depicting the directionality of segment excision. Black boxes represent long tandem repeats, and three repeat classes are listed as A, B, and C. Regions of synteny between proviral segment and flanking DNA are shaded in gray. Strand-specific protein coding genes within proviral segments are depicted by green boxes, while genes encoded in flanking DNA at each locus are depicted by purple boxes. The length for each locus is shown in kbp.