The Mariana snailfish or Mariana hadal snailfish Pseudoliparis swirei is a species of snailfish found in the Mariana Trench in the western Pacific Ocean. It is known from a depth range of 6,198–8,076 m，which is possibly the record for a fish caught on the seafloor. Various anatomical, physiological, molecular and genetic adaptions help this species survive in such depths. It is abundant in their deep-sea habitat and has several unusual adaptions for its dark and high pressure habitat, including transparent skin that lacks pigment, certain organs and eggs that are enlarged, the muscles are thinner, the ossification of its bones (notably the skull) is incomplete.
| Species | Phylum | Common Name | Ecosystem | Depth | Habitat | NCBI Taxonomy ID |
|---|---|---|---|---|---|---|
| Pseudoliparis swirei | Chordata | hadal snailfish | Deep sea | 7,254 | the Mariana Trench (142°26′E, 11°07′N) | 2059687 |
| Genome Assembly | Genome Size | Assembly level | Released year | WGS accession | Submitter | BioProject | BUSCO completeness | Gene Number |
|---|---|---|---|---|---|---|---|---|
| NWPU_hadal_v1 | 626.4Mb | Chromosome | 2023 | JANBZZ01 | Northwestern Polytechnical University | PRJNA852951 | 96.00% | 21,161 |
| Title | Journal | Pubmed ID |
|---|---|---|
| Chromosome-level genome assembly of hadal snailfish reveals mechanisms of deep-sea adaptation in vertebrates | Elife | 38134226 |
| Gene ID | Description |
|---|---|
| HS12251 | LEUKOCYTE CELL-DERIVED CHEMOTAXIN 2 |
| HS12252 | CERAMIDASE |
| HS12253 | |
| HS12254 | RIBONUCLEASE P SUBUNIT P30 |
| HS12255 | NUCLEOSIDE DIPHOSPHATE-LINKED MOIETY X MOTIF 13 |
| HS12256 | RAB GTPASE-ACTIVATING PROTEIN 1-LIKE |
| HS12257 | AMSH-LIKE PROTEASE |
| HS12258 | LYSOSOMAL ACID LIPASE-RELATED |
| HS12259 | LYSOSOMAL ACID LIPASE-RELATED |
| HS12260 | UNCHARACTERIZED |
| HS12261 | PHOSPHATASE WITH HOMOLOGY TO TENSIN |
| HS12262 | UNCHARACTERIZED |
| HS12263 | RAC GTPASE-ACTIVATING PROTEIN 1 |
| HS12264 | |
| HS12265 | |
| HS12266 | RHO GTPASE-ACTIVATING PROTEIN 100F |
| HS12267 | RHO GTPASE-ACTIVATING PROTEIN 100F |
| HS12268 | TRANSCRIPTION FACTOR COE FAMILY MEMBER |
| HS12269 | FORMIN-LIKE PROTEIN |
| HS12270 | FORMIN-LIKE PROTEIN |
| HS12271 | |
| HS12272 | REGUCALCIN |
| HS12273 | VACUOLAR PROTEIN SORTING VPS16 |
| HS12274 | CAVIN |
| HS12275 | STEROL ISOMERASE |
| HS12276 | ADP RIBOSYLATION FACTOR-RELATED |
| HS12277 | EF-HAND AND COILED-COIL DOMAIN-CONTAINING FAMILY MEMBER |
| HS12278 | CD59 GLYCOPROTEIN |
| HS12279 | FORMIMINOTRANSFERASE-CYCLODEAMINASE |
| HS12280 | INTERPHOTORECEPTOR MATRIX PROTEOGLYCAN |
| HS12281 | SENTRIN-SPECIFIC PROTEASE |
| HS12282 | FRIZZLED |
| HS12283 | NANCE-HORAN SYNDROME PROTEIN |
| HS12284 | CHROMOSOME ALIGNMENT-MAINTAINING PHOSPHOPROTEIN 1 |
| HS12285 | |
| HS12286 | F-BOX ONLY PROTEIN 3 |
| HS12287 | PROTHROMBIN |
| HS12288 | XANTHINE DEHYDROGENASE |
| HS12289 | - |
| HS12290 | CREG1 PROTEIN |
| HS12291 | HISTONE-LYSINE N-METHYLTRANSFERASE EGGLESS |
| HS12292 | T-CELL SURFACE GLYCOPROTEIN CD3 ZETA CHAIN |
| HS12293 | |
| HS12294 | COAGULATION FACTOR |
| HS12295 | COAGULATION FACTOR |
| HS12296 | COAGULATION FACTOR |
| HS12297 | COAGULATION FACTOR |
| HS12298 | UNCHARACTERIZED PROTEASOME COMPONENT REGION PCI-CONTAINING |
| HS12299 | T-BOX PROTEIN-RELATED |
| HS12300 | UNCHARACTERIZED |
