Table 1.
Number of Rag1 sequences present in our alignment
| N | Bp | Complete gene | 2000 bp <N <total length | 1000 bp <N<2000 bp | |
|---|---|---|---|---|---|
| Actinopterygii | 110 | 3246 | 2 | 0 | 108 |
| Amphibia | 113 | 3252 | 2 | 5 | 106 |
| Aves | 119 | 3141 | 1 | 118 | 0 |
| Chondrichthyes | 30 | 3336 | 1 | 0 | 29 |
| Crocodylia | 13 | 2947 | 0 | 12 | 1 |
| Lepidosauria | 84 | 2928 | 0 | 80 | 4 |
| Mammalia | 89 | 3165 | 6 | 31 | 52 |
| Testudines | 24 | 2793 | 0 | 24 | 0 |
Number of sequences (N) present in our 582 sequences alignment, divided into three length classes (based on clade-wise alignment and not on the total vertebrate alignment). "Complete" indicates sequences included in the alignment for which the coding region of Rag1 has been entirely sequenced (bold numbers, [see Additional file 1]). "2000 bp < N<total length" indicates the number of sequences of more than 2000 base pairs, but not full length. "1000 bp < N<2000 bp" indicates the number of sequences between 1000 and 2000 base pairs long.