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 |
|---|---|
| HS00401 | |
| HS00402 | CYCLIN-DEPENDENT KINASE INHIBITOR-RELATED PROTEIN |
| HS00403 | |
| HS00404 | |
| HS00405 | |
| HS00406 | PEPTIDYLPROLYL ISOMERASE |
| HS00407 | PROTEIN LYSINE HYDROXYLATION COMPLEX COMPONENT |
| HS00408 | SUSHI DOMAIN-CONTAINING PROTEIN 5 |
| HS00409 | UNCHARACTERIZED |
| HS00410 | CLASP |
| HS00411 | TRANSCRIPTION FACTOR CP2 |
| HS00412 | PCD6 INTERACTING PROTEIN-RELATED |
| HS00413 | FATTY ACID BINDING PROTEIN |
| HS00414 | CAMP-REGULATED PHOSPHOPROTEIN 21 RELATED R3H DOMAIN CONTAINING PROTEIN |
| HS00415 | CYSTEINE AND HISTIDINE-RICH PROTEIN 1 |
| HS00416 | SERINE/THREONINE-PROTEIN KINASE |
| HS00417 | NUCLEOLAR PROTEIN OF 40 KDA |
| HS00418 | U5 SMALL NUCLEAR RIBONUCLEOPROTEIN 40 KDA PROTEIN |
| HS00419 | T-CELL LYMPHOMA BREAKPOINT-ASSOCIATED TARGET 1-RELATED |
| HS00420 | RNA BINDING PROTEIN PUMILIO-RELATED |
| HS00421 | SYNDECAN |
| HS00422 | HOMEOBOX PROTEIN NOBOX |
| HS00423 | COLLAGEN ALPHA |
| HS00424 | P53 REGULATED PA26 NUCLEAR PROTEIN SESTRIN |
| HS00425 | TYROSINE-PROTEIN KINASE |
| HS00426 | UNCHARACTERIZED |
| HS00427 | UNCHARACTERIZED |
| HS00428 | METHYLTRANSFERASE-LIKE PROTEIN 24 |
| HS00429 | WASP-1 |
| HS00430 | G-PROTEIN COUPLED RECEPTOR |
| HS00431 | BITESIZE, ISOFORM I |
| HS00432 | ZINC FINGER AND SCAN DOMAIN-CONTAINING |
| HS00433 | CALCIUM BINDING PROTEINS |
| HS00434 | UNCHARACTERIZED |
| HS00435 | AAA-FAMILY ATPASE |
| HS00436 | ENGULFMENT AND CELL MOTILITY |
| HS00437 | RETINITIS PIGMENTOSA 9 PROTEIN |
| HS00438 | UPF0711 PROTEIN C18ORF21 |
| HS00439 | N-ACETYLGALACTOSAMINYLTRANSFERASE |
| HS00440 | N-ACETYLGALACTOSAMINYLTRANSFERASE |
| HS00441 | GABA-B RECEPTOR |
| HS00442 | |
| HS00443 | ELONGATOR COMPLEX PROTEIN 2 |
| HS00444 | ALPHA-CATULIN |
| HS00445 | UNCHARACTERIZED |
| HS00446 | PROTEIN ENHANCER OF SEVENLESS 2B |
| HS00447 | |
| HS00448 | CONNECTIVE TISSUE GROWTH FACTOR-RELATED |
| HS00449 | N-MYC DOWNSTREAM REGULATED |
| HS00450 |
