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 |
|---|---|
| HS12701 | COILED-COIL DOMAIN-CONTAINING PROTEIN 14 |
| HS12702 | ANK_REP_REGION DOMAIN-CONTAINING PROTEIN |
| HS12703 | HEAT SHOCK FACTOR 2-BINDING PROTEIN |
| HS12704 | DIACYLGLYCEROL KINASE |
| HS12705 | GUANYLATE CYCLASE SOLUBLE SUBUNIT BETA-2 |
| HS12706 | PROTEIN SON |
| HS12707 | |
| HS12708 | 52 KDA REPRESSOR OF THE INHIBITOR OF THE PROTEIN KINASE-LIKE PROTEIN-RELATED |
| HS12709 | RIBOSOMAL PROTEIN S6 KINASE |
| HS12710 | ZINC FINGER DHHC DOMAIN CONTAINING PROTEIN |
| HS12711 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS12712 | PROTEIN CBG26694 |
| HS12713 | ENDONUCLEASE-RELATED |
| HS12714 | UDP- GLUCOSE PYROPHOSPHORYLASE |
| HS12715 | SOLUTE CARRIER FAMILY 25 |
| HS12716 | AGAP001331-PA-RELATED |
| HS12717 | DOLICHOL PHOSPHATE-MANNOSE BIOSYNTHESIS REGULATORY PROTEIN |
| HS12718 | PHOSPHATIDYLINOSITOL-4-PHOSPHATE 5-KINASE |
| HS12719 | - |
| HS12720 | TBC1 DOMAIN FAMILY MEMBER GTPASE-ACTIVATING PROTEIN |
| HS12721 | ATP-DEPENDENT RNA HELICASE |
| HS12722 | HISTONE-LYSINE N-METHYLTRANSFERASE SMYD |
| HS12723 | SEPIAPTERIN REDUCTASE |
| HS12724 | ENDONUCLEASE-RELATED |
| HS12725 | SODIUM/DICARBOXYLATE SYMPORTER-RELATED |
| HS12726 | - |
| HS12727 | FOLYLPOLYGLUTAMATE SYNTHASE-RELATED |
| HS12728 | F-BOX/TPR REPEAT PROTEIN POF3 |
| HS12729 | CELL DIVISION PROTEIN KINASE |
| HS12730 | REVERSE TRANSCRIPTASE |
| HS12731 | RAS-ASSOCIATING DOMAIN-CONTAINING PROTEIN |
| HS12732 | TESTIS-SPECIFIC Y-ENCODED PROTEIN |
| HS12733 | DYNEIN INTERMEDIATE CHAIN |
| HS12734 | SPECTRIN/FILAMIN RELATED CYTOSKELETAL PROTEIN |
| HS12735 | OUTER DENSE FIBER OF SPERM TAILS 2 |
| HS12736 | PROTEIN SCAI |
| HS12737 | SERINE/THREONINE-PROTEIN PHOSPHATASE PP2A-RELATED |
| HS12738 | |
| HS12739 | SESQUIPEDALIAN |
| HS12740 | UNC119-BINDING PROTEIN C5ORF30 |
| HS12741 | UNCHARACTERIZED |
| HS12742 | PEPTIDYL-GLYCINE ALPHA-AMIDATING MONOOXYGENASE |
| HS12743 | THAP DOMAIN-CONTAINING PROTEIN 2 |
| HS12744 | |
| HS12745 | UNCHARACTERIZED |
| HS12746 | |
| HS12747 | |
| HS12748 | UNCHARACTERIZED |
| HS12749 | APICAL PROTEIN/SHROOM-RELATED |
| HS12750 | UNCHARACTERIZED |
