Figure 2.

Diagrams of the two D. virilis phage clones, V8 and V2. Arrows above diagram identify different elements and indicate 5′ → 3′ of sense-strand. ?? indicates unidentified element. Regions in each element are marked as in Fig. 1. 3′-5′ indicates apparently complete junctions between elements. Domains in ORF2 are: E, endonuclease; RT; and X, extra domain. Black rectangles under Gag and Pol indicate high content of CAX repeats; white arrowheads mark the phage arms. Diagrams are approximately to scale.