Table 1. Distribution of REV-related sequences in vertebrate and virus genomes.
| No. of Highly Significant Matches Detectedb | |||||
| Species/Groupa | LTR | Leader | Gag | Pol | Env |
| Mammals | |||||
| European hedgehog (Erinaceus europaeus) | — | — | 76 | 166 | — |
| Madagascar tenrec (Echinops telfairi) | — | — | — | 5 | — |
| Flying fox (Pteropus vampyrus) | — | — | 7 | 14 | — |
| Little brown bat (Myotis lucifugus) | — | — | 9 | 3 | — |
| Ferret (Mustela putroius furo) | — | — | — | 4 | — |
| Hoffmann's two toed sloth (Choloepus hoffmanni) | — | — | — | 7 | — |
| Gray short-tailed opossum (Monodelphis domestica) | — | — | — | 4 | — |
| Nine-banded armadillo (Dasypus novemcinctus) | — | — | — | 1 | — |
| Phillipine tarsier (Tarsius syrichta) | — | — | — | — | 3 |
| Cape hyrax (Procavia capensis) | — | — | 1 | — | 13 |
| Large DNA viruses | |||||
| Marek's disease virus (MDV) | 4 | — | — | — | — |
| Fowlpox virus (FWPV) | 15 | 2 | 2 | 2 | 1 |
a
Only species in which highly significant matches were detected are shown. Table S2 provides a complete list of avian and mammalian species for which whole genome sequence data were screened. For large DNA viruses we screened all “Herpesviridae” and “Poxviridae” sequences in GenBank.
b
Highly significant matches were identified using an empirically determined BLAST bitscore threshold (see Materials and Methods).