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 |
|---|---|
| HS00751 | ATP-BINDING CASSETTE ABC TRANSPORTER-RELATED |
| HS00752 | SERINE/THREONINE-PROTEIN KINASE SBK1 |
| HS00753 | TYROSINE-PROTEIN KINASE RECEPTOR |
| HS00754 | CHLORIDE CHANNEL PROTEIN 2 |
| HS00755 | PROTEIN FAM131B-RELATED |
| HS00756 | GLYCERALDEHYDE 3-PHOSPHATE DEHYDROGENASE |
| HS00757 | MHC CLASS I-RELATED |
| HS00758 | SYNAPTOBREVIN FAMILY MEMBER |
| HS00759 | CHROMODOMAIN-HELICASE-DNA-BINDING PROTEIN 3-RELATED-RELATED |
| HS00760 | ENOLASE |
| HS00761 | GUANINE NUCLEOTIDE-BINDING PROTEIN BETA G PROTEIN BETA |
| HS00762 | LITHOSTATHINE |
| HS00763 | PRO-OPIOMELANOCORTIN |
| HS00764 | NADH-UBIQUINONE OXIDOREDUCTASE B22 SUBUNIT |
| HS00765 | TATD FAMILY DEOXYRIBONUCLEASE |
| HS00766 | TRANSPOSABLE ELEMENT-RELATED |
| HS00767 | RING ZINC FINGER PROTEIN |
| HS00768 | |
| HS00769 | TRANSMEMBRANE PROTEIN 65 |
| HS00770 | ACTIN BUNDLING/MISSING IN METASTASIS-RELATED |
| HS00771 | |
| HS00772 | |
| HS00773 | |
| HS00774 | CALBINDIN |
| HS00775 | LEUCINE-RICH REPEAT, ISOFORM F-RELATED |
| HS00776 | TUMOR NECROSIS FACTOR RECEPTOR SUPERFAMILY MEMBER |
| HS00777 | ECTONUCLEOTIDE PYROPHOSPHATASE/PHOSPHODIESTERASE |
| HS00778 | ECTONUCLEOTIDE PYROPHOSPHATASE/PHOSPHODIESTERASE |
| HS00779 | ZINC FINGER PROTEIN WITH KRAB AND SCAN DOMAINS |
| HS00780 | MHC CLASS I-RELATED |
| HS00781 | COLLAGEN ALPHA |
| HS00782 | PROTEIN CBG26694 |
| HS00783 | PROTEIN CBG11839-RELATED |
| HS00784 | ZINC-FINGERS AND HOMEOBOXES RELATED |
| HS00785 | ZINC-FINGERS AND HOMEOBOXES RELATED |
| HS00786 | MHC CLASS I-RELATED |
| HS00787 | LIM/HOMEOBOX PROTEIN LHX |
| HS00788 | TENASCIN |
| HS00789 | ATF6, ISOFORM C |
| HS00790 | |
| HS00791 | |
| HS00792 | SUPPRESSOR OF ACTIN MUTATIONS 2/VACUOLAR PROTEIN SORTING 52 |
| HS00793 | 30S RIBOSOMAL PROTEIN S13/40S RIBOSOMAL PROTEIN S18 |
| HS00794 | |
| HS00795 | E3 UBIQUITIN-PROTEIN LIGASE RING1 / RING 2 FAMILY MEMBER |
| HS00796 | |
| HS00797 | |
| HS00798 | CARCINOEMBRYONIC ANTIGEN-RELATED CELL ADHESION MOLECULE 8 |
| HS00799 | ZINC FINGER PROTEIN |
| HS00800 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
