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Endogenous Viral Elements in Animal Genomes

Figure 2

Genetic structures and phylogenetic relationships of Mononegavirus EVEs.

(a) Summary genetic structures of Mononegavirus EVE sets (Borna-, Rhabdo- and Filoviridae) shown relative to genus type species. The most intact elements are shown for each host taxon. Vertical lines between EVEs in the same host species that are derived from distinct genes indicate that the EVEs are not contiguous in the host genome. Abbreviations for viral type species (bold), host species (italics), and host taxa (bold, italic, underline) are indicated to the left of each EVE. Taxonomic groups are shown for EVE insertions identified as orthologs. Poly-A tails are shown for EVEs that had these features. Intact ORFs (circles) and expressed sequences (crosses) are indicated. Phylogenetic relationships of (b) bornavirus, (c) rhabdovirus and (d) filovirus EVEs and representative exogenous viruses. Taxa that are shown as genetic structures in (a) are indicated by colored squares. Support for the ML phylogenetic trees was evaluated using 1,000 nonparametric bootstrap replicates, and all three trees are midpoint rooted for display purposes. Abbreviations: BDV = Borna disease virus; ZEBOV = Zaire ebola virus; VSV = vesicular stomatitis virus, L-pol = L-polymerase.

Figure 2