Table 1. Comparison of the genome assembly statistics of cridarians.
| Hydrozoa | Scyphozoa | Cubozoa | Anthozoa | |||||
|---|---|---|---|---|---|---|---|---|
| Species | Hydra viridissimaa | Hydra vulgaris (Hydra magnipapillata) | Clytia hemisphaericab | Aurelia auritac | Morbakka virulentac | Acropora digitiferad | Nematostella vectensise | |
| Geographical origin | Laboratory strain A99 | Laboratory strain 105 | Villefranche (Atlantic) | Baltic Sea (Atlantic) | Seto Inland Sea (Pacific) | Okinawa (Pacific) | Laboratory strain | |
| ver. 1f | ver. 2g | |||||||
| Genome size (Mbp) | 284 | 852 | 854 | 445 | 377 | 952 | 420 | 457 |
| Number of Scaffolds | 2,677 | 20,914 | 5,525 | 7,644 | 2,710 | 4,538 | 2,420 | 10,804 |
| Longest scaffold (Mbp) | 5.1 | 0.91 | 4.4 | 2.9 | 4.4 | 14.5 | 2.5 | 3.3 |
| Scaffold N50 (Mbp) | 1.1 | 0.1 | 1.0 | 0.4 | 1.0 | 2.2 | 0.5 | 0.5 |
| GC content (%) | 24.7 | 25.4 | 25.4 | 35 | 34.7 | 31.4 | 39 | 39 |
| Repeats (%) | 37.5 | 57 | 60.3 | 41 | 44.7 | 37.4 | 12.9 | 26 |
| Gap rate (%) | 16.8 | 7.82 | 8.0 | 16.6 | 6.63 | 11.9 | 15.2 | 16.6 |
| Number of genes | 21,476 | 31,452 | 33,820 | 26,727 | 28,625 | 24,278 | 23,668 | 27,273 |
| Mean gene length (bp) | 7,637 | 6,873 | 12,378 | 5,848 | 10,215 | 21,444 | 8,727 | 4,500 |
| Mean exon length (bp) | 209 | 247 | N/A | 281 | 368 | 350 | 316 | 208 |
| Mean intron length (bp) | 838 | N/A | N/A | N/A | 1391 | 3572 | 1057 | 800 |
| BUSCO (complete) % | 83.9 | 76.8 | 80.2 | 86.4 | 79.8 | 81.5 | 74.5 | 91.4 |
a
This study. b Leclère et al., 2019, cKhalturin et al., 2019. dShinzato et al., 2011. ePutnam et al., 2007, fGenome assembly version 1, Chapman et al.,2010, gGenome assembly version 2, Hydra2.0 Web Portal (https://research.nhgri.nih.gov/hydra/).