Table 1 Comparison of the sequenced tunicate genomes and their most prominent biological features.
Botryllus schlosseri | Ciona robusta | Ciona savignyi | Molgula occidentalis | Molgula occulta | Molgula oculata | Oikopleura dioica | Salpa thompsoni | Botrylloides leachii | |
|---|---|---|---|---|---|---|---|---|---|
Genome size | 725 Mb | 160 Mb | 190 Mb | 160 Mb | 160 Mb | 160 Mb | 72 Mb | 602 Mb | 194 Mb |
Number of scaffolds | 121,094 | 4,390 | 374 | 21,251 | 23,663 | 10,554 | 1,260 | 478,281 | 1,778 |
Fraction of repetitive DNA | 60% | 26% | 35% | 27% | 23% | 26% | 15% | 60–70% | 19% |
Predicted gene number | 27,463 | 16,671 | 11,956 | 30,639 | N/A | 15,313 | 16,749 | 26,415 | 15839 |
GC content | 41% | 36% | 37% | 33% | 38% | 36% | 40% | 37% | 41% |
Body structure | colony, sessile | solitary, sessile | solitary, sessile | solitary, sessile | solitary, sessile | solitary, sessile | solitary. motile | colony, planktonic | colony, sessile |
Reproduction | asexual, sexual, hermaphrodite | sexual, hermaphrodite | sexual, hermaphrodite | sexual, hermaphrodite | sexual, hermaphrodite | sexual, hermaphrodite | sexual, separated sexes | asexual, sexual, hermaphrodite | asexual, sexual, hermaphrodite |
Regenerative ability | WBR | specific organs | specific organs | unknown | unknown | unknown | unknown | unknown | WBR |
