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FIG 2
Phylogenetic tree of DrERV-like elements. (A) Phylogenetic analysis of DrERVs based on RT region. (B) Schematic diagram of the numbers and relationships between XRV-related DrERV groups. (C) Phylogenetic tree constructed using retrotrans_gag. (D) Phylogenetic tree constructed using the TLV_coat (HR1–HR2) domain. In (C) and (D), the DrERVs that have been classified as class I, class III, and gypsy by RT are annotated with purple, orange, and dark blue boxes, respectively; XRVs or ERVs from other species are annotated with light blue boxes; the newly identified DrERVs are annotated with red boxes.
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