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 |
|---|---|
| HS17551 | CYTOCHROME P450 508A4-RELATED |
| HS17552 | CYTOCHROME P450 508A4-RELATED |
| HS17553 | |
| HS17554 | TYROSINE-PROTEIN KINASE RECEPTOR |
| HS17555 | GALECTIN |
| HS17556 | B30.2/SPRY DOMAIN-CONTAINING PROTEIN |
| HS17557 | GUANINE NUCLEOTIDE EXCHANGE FACTOR |
| HS17558 | HETEROGENEOUS NUCLEAR RIBONUCLEOPROTEIN U FAMILY MEMBER |
| HS17559 | OPTIC ATROPHY 3 PROTEIN OPA3 |
| HS17560 | RELA-ASSOCIATED INHIBITOR |
| HS17561 | UPF0338 PROTEIN |
| HS17562 | EXOSOME COMPLEX COMPONENT |
| HS17563 | 2-OXOISOVALERATE DEHYDROGENASE SUBUNIT ALPHA, MITOCHONDRIAL |
| HS17564 | BETA-1,3-N-ACETYLGLUCOSAMINYLTRANSFERASE |
| HS17565 | SOLUBLE NSF ATTACHMENT PROTEIN SNAP |
| HS17566 | EH DOMAIN |
| HS17567 | NUCLEOPORIN NUP84-RELATED |
| HS17568 | 26S PROTEASOME NON-ATPASE REGULATORY SUBUNIT 8 |
| HS17569 | SPROUTY-RELATED, EVH1 DOMAIN-CONTAINING PROTEIN FAMILY MEMBER |
| HS17570 | ATP-DEPENDENT RNA HELICASE |
| HS17571 | ACROSIN-RELATED |
| HS17572 | ALZHEIMER'S DISEASE BETA-AMYLOID RELATED |
| HS17573 | ZINC FINGER PROTEIN |
| HS17574 | |
| HS17575 | PROTEIN SIDEKICK |
| HS17576 | BCL9 |
| HS17577 | BCL9 |
| HS17578 | DEAD-BOX ATP-DEPENDENT RNA HELICASE 50 |
| HS17579 | |
| HS17580 | |
| HS17581 | NECTIN-RELATED |
| HS17582 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
| HS17583 | SI:CH211-196P9.1-RELATED |
| HS17584 | CDNA SEQUENCE BC021608 |
| HS17585 | PROTEIN CBG16327 |
| HS17586 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
| HS17587 | PROTEIN SIDEKICK |
| HS17588 | OLIGOPHRENIN 1 |
| HS17589 | KNIRPS-RELATED PROTEIN-RELATED |
| HS17590 | TRANSIENT RECEPTOR POTENTIAL CHANNEL |
| HS17591 | CENTROSOMAL PROTEIN CEP126 |
| HS17592 | YES-ASSOCIATED PROTEIN YAP1 FAMILY MEMBER |
| HS17593 | MASTERMIND-LIKE |
| HS17594 | GRB2-ASSOCIATED-BINDING PROTEIN |
| HS17595 | ASPARTYL/LYSYL-TRNA SYNTHETASE |
| HS17596 | TENEURIN AND N-ACETYLGLUCOSAMINE-1-PHOSPHODIESTER ALPHA-N-ACETYLGLUCOSAMINIDASE |
| HS17597 | PROTEIN FAM181B |
| HS17598 | PROTEASE S28 PRO-X CARBOXYPEPTIDASE-RELATED |
| HS17599 | - |
| HS17600 | SERINE PROTEASE INHIBITOR, SERPIN |
