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 |
|---|---|
| HS10751 | VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN |
| HS10752 | RHO FAMILY GTPASE |
| HS10753 | PHOSPHATIDYLINOSITOL N-ACETYLGLUCOSAMINYLTRANSFERASE SUBUNIT H |
| HS10754 | AGAP002036-PA |
| HS10755 | DDB1- AND CUL4-ASSOCIATED FACTOR 4-RELATED |
| HS10756 | HL01030P-RELATED |
| HS10757 | LEG1 |
| HS10758 | LEG1 |
| HS10759 | SYNTAXIN |
| HS10760 | CONNECTIVE TISSUE GROWTH FACTOR-RELATED |
| HS10761 | |
| HS10762 | GUANYLYL CYCLASE |
| HS10763 | |
| HS10764 | CHROMOGRANIN |
| HS10765 | PHOSPHOLIPASE B, PLB1 |
| HS10766 | PHOSPHOLIPASE B, PLB1 |
| HS10767 | SEL-1-LIKE PROTEIN |
| HS10768 | RHO GTPASE ACTIVATING PROTEIN 18,19-RELATED |
| HS10769 | INACTIVE PEPTIDYL-PROLYL CIS-TRANS ISOMERASE FKBP6 |
| HS10770 | SYS1 |
| HS10771 | AGAP005329-PA |
| HS10772 | 4.1 G PROTEIN |
| HS10773 | |
| HS10774 | INOSITOL POLYPHOSPHATE KINASE |
| HS10775 | - |
| HS10776 | UNCHARACTERIZED |
| HS10777 | SMALL INDUCIBLE CYTOKINE A |
| HS10778 | EH DOMAIN |
| HS10779 | INTERFERON/INTERLEUKIN RECEPTOR |
| HS10780 | MEDIATOR OF RNA POLYMERASE II TRANSCRIPTION SUBUNIT 23 |
| HS10781 | RNA 2',3'-CYCLIC PHOSPHODIESTERASE |
| HS10782 | SI:CH211-245H14.1-RELATED |
| HS10783 | TRIADIN |
| HS10784 | T-CELL LYMPHOMA BREAKPOINT-ASSOCIATED TARGET 1-RELATED |
| HS10785 | RBR FAMILY RING FINGER AND IBR DOMAIN-CONTAINING |
| HS10786 | TUMOR PROTEIN D52 |
| HS10787 | UNCHARACTERIZED |
| HS10788 | NEUROHYPOPHYSIAL HORMONES, N-TERMINAL DOMAIN CONTAINING PROTEIN |
| HS10789 | UNCHARACTERIZED |
| HS10790 | MCG7194, ISOFORM CRA_A |
| HS10791 | UNCHARACTERIZED |
| HS10792 | FATTY ACID ACYL TRANSFERASE-RELATED |
| HS10793 | PRION-LIKE- Q/N-RICH -DOMAIN-BEARING PROTEIN PROTEIN 44 |
| HS10794 | CELL ADHESION MOLECULE |
| HS10795 | SERINE PROTEASE |
| HS10796 | CLATHRIN ASSEMBLY PROTEIN |
| HS10797 | PHOSPHOACETYLGLUCOSAMINE MUTASE |
| HS10798 | CYCLIN |
| HS10799 | METAXIN RELATED |
| HS10800 | POU DOMAIN |
