Table 1.
Description of the 41 reference copies and detection of the LTR position
| Family name | Class | Total size | LTR size |
| Dagul | Gypsy | 13425 | 3623 |
| Hopi/Osr27 | Gypsy | 12892 | 1103 |
| Houba/Tos5/Osr13 | Copia | 6437 | 968 |
| Osr1 | Copia | 6400 | 965 |
| Osr2 | Copia | 4950 | 268 |
| Osr3 | Copia | 5201 | 146 |
| Osr4 | Copia | 5665 | 350 |
| Osr5 | Copia | 6092 | 477 |
| Osr6 | Copia | 5204 | 440 |
| Osr7 | Copia | 8908 | 1618 |
| Osr8 | Copia | 9222 | 1220 |
| Osr9 | Copia | 2766 | RT only (28) |
| Osr10 | Copia | 1821 | RT only (28) |
| Osr11 | Copia | 1114 | RT only (28) |
| Osr12 | Copia | 4719 | 221 |
| Osr14 | Copia | 8371 | 303 |
| Osr15 | Copia | 5063 | 255 |
| Osr16 | Copia | 6908 | ambiguous LTR position |
| Osr17 | Copia | 5957 | 466 |
| Osr18 | Copia | 1614 | ambiguous LTR position |
| Osr19 | Copia | 4707 | 172 |
| Osr20 | Copia | 5509 | 286 |
| Osr22 | Copia | 4737 | 159 |
| Osr23 | Copia | 4474 | ambiguous LTR position |
| Osr24 | Copia | 4852 | 221 |
| Osr28 | Gypsy | 18007 | 2195 |
| Osr29 | Gypsy | 9007 | 656 |
| Osr30 | Gypsy | 13001 | 1507 |
| Osr31 | Gypsy | 7403 | ambiguous LTR position |
| Osr34 | Gypsy | 12796 | 3292 |
| Osr35 | Gypsy | 5688 | 423 |
| Osr36 | Gypsy | 5157 | 319 |
| Osr37 | Gypsy | 4436 | 794 |
| Osr38 | Gypsy | 5511 | 312 |
| Osr39 | Gypsy | 5217 | 368 |
| Osr40 | Gypsy | 11421 | 564 |
| Osr42 | Gypsy | 5605 | 358 |
| Osr43 | Gypsy | 1794 | 291 |
| Osr44 | Gypsy | 1200 | 148 |
| RIRE1 | Copia | 8322 | 1523 |
| Tos17/Osr21 | Copia | 4204 | 138 |
The elements highlighted in bold correspond to the elements for which the LTR position was validated after comparison of the literature data with our annotation. Total size of the element is given after homogenization of the two LTRs (see Materials and Methods). Data extracted from the literature are from [28], except for RIRE1 [44] and Tos17/Osr1 [45].