Related Families of LTRs
| Related LTRs | Percent identity[i] | Alignment length (bp)[ii] |
| alpha, san, xi | 62 (a/s) | 408 |
| 61 (a/x) | 404 | |
| 62 (s/x) | 412 | |
| lambda, zeta | 57 | 449 |
| omega, mu | 58 | 453 |
| nu, iota[iii] | 57 | 209 |
| omicron, pi, rho[iii] | 65 (o/p) | 144 |
| 58 (o/r) | 251 | |
| 60 (p/r) | 244 | |
| chi, phi | 67 | 204 |
| eta, epsilon | 57 | 491 |
| whio, tara, titi | 61 (w/ta) | 203 |
| 59 (w/ti) | 256 | |
| 60 (ta/ti) | 245 | |
| moa, episemon | 58 | 374 |
| sampi, theta | 62 | 267 |
[i] Between representative elements of each family.
[ii] In many cases this is not a full-length alignment.
[iii] These two groups appear to be loosely associated as well.