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 |
|---|---|
| HS06501 | ZINC FINGER PROTEIN DZIP1 |
| HS06502 | |
| HS06503 | N-LYSINE METHYLTRANSFERASE KMT5A |
| HS06504 | PROBABLE PEPTIDE CHAIN RELEASE FACTOR C12ORF65 |
| HS06505 | |
| HS06506 | PHOSPHATIDYLINOSITOL TRANSFER PROTEIN |
| HS06507 | |
| HS06508 | |
| HS06509 | C2 DOMAIN-CONTAINING PROTEIN |
| HS06510 | VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN VPS13 |
| HS06511 | GTP-BINDING PROTEIN ALPHA SUBUNIT |
| HS06512 | |
| HS06513 | PROTEIN CBG26694 |
| HS06514 | MALIC ENZYME-RELATED |
| HS06515 | |
| HS06516 | TETRASPANIN |
| HS06517 | SI:DKEY-19B23.11-RELATED |
| HS06518 | RETROVIRUS-RELATED POL POLYPROTEIN FROM TRANSPOSON 412-LIKE PROTEIN-RELATED |
| HS06519 | SI:DKEY-19B23.11-RELATED |
| HS06520 | MACROPHAGE-EXPRESSED GENE 1 PROTEIN |
| HS06521 | PERFORIN-1 |
| HS06522 | SI:DKEY-19B23.11-RELATED |
| HS06523 | PERFORIN-1 |
| HS06524 | SNF2/RAD54 HELICASE FAMILY |
| HS06525 | BASIC HELIX-LOOP-HELIX PROTEIN NEUROGENIN-RELATED |
| HS06526 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS06527 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS06528 | - |
| HS06529 | UNCHARACTERIZED |
| HS06530 | E3 UBIQUITIN-PROTEIN LIGASE TRIM36-RELATED |
| HS06531 | GERANYLGERANYL TRANSFERASE TYPE BETA SUBUNIT |
| HS06532 | MUTATED IN BLADDER CANCER 1 |
| HS06533 | ANKYRIN REPEAT CONTAINING |
| HS06534 | TRANSMEMBRANE EMP24 DOMAIN-CONTAINING PROTEIN |
| HS06535 | RING FINGER AND KH DOMAIN CONTAINING PROTEIN 1 |
| HS06536 | |
| HS06537 | SMAD |
| HS06538 | TRANSDUCIN-LIKE ENHANCER PROTEIN |
| HS06539 | RAS-RELATED PROTEIN RAB |
| HS06540 | |
| HS06541 | 4.1 G PROTEIN |
| HS06542 | GLUCONOKINASE-RELATED |
| HS06543 | G KINASE ANCHORING PROTEIN 1 |
| HS06544 | UNCHARACTERIZED |
| HS06545 | KH DOMAIN CONTAINING RNA BINDING PROTEIN |
| HS06546 | RECQ-MEDIATED GENOME INSTABILITY PROTEIN 1 RMI1 |
| HS06547 | SODIUM/NUCLEOSIDE COTRANSPORTER |
| HS06548 | CONTACTIN 5 |
| HS06549 | CYTOSOLIC CARBOXYPEPTIDASE |
| HS06550 | GLUCOSE REPRESSIBLE PROTEIN MAK10 |
