Summary of Tetraodon Sequence Resources, Genome Characteristics and Repeat Abundance, in Comparison with Fugu [i]
| Sequence resource | T. nigroviridis | F. rubripes |
| Number of sequences | 47,599 | 52,668 |
| Sequencing protocol | Dye primer/LiCor | Dye terminator/ABI377 |
| Sequencing templates | BAC clone ends | Cosmid shotgun clones |
| Average raw sequence length | 1,075 bp | N.A.[ii] |
| Average sequence length after clipping | 969 bp | 463 bp |
| Total DNA in database | 46,133 Mb | 24,385 Mb |
| Fraction of genome covered | ∼13% | ∼6% |
| Uncalled bases | 3.2% | 5.3%* |
| Genome characteristics | ||
| Genome size | ∼350 Mb | ∼400 Mb |
| Chromosome pairs | 21 | 22 |
| %GC | 45.5% | 47.67% |
| Repeat abundance | ||
| rRNA DNA | 0.77% | N.A. |
| Microsatellites | 3.21% | 2.12%* |
| Centromeric 118-bp satellite | 0.34% | 0.3% |
| Transposable elements | 0.90% | 1.89% |
| Minisatellites | 0.41% | N.A. |
| Subtelocentric 10-bp satellite | 0.54% | N.A. |
| Microsatellite distribution | ||
| Sequences with at least one motif | 79.5% | 40.0% |
| Motifs per sequence (average) | 1.67 | 0.56 |
| Fraction of all 501 motifs observed | 94.8% | 82.8% |
[i] All figures for the Fugu genome are fromElgar et al. (1999), except for those indicated by (*) which are from this work.
[ii] N.A., not available.