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 |
|---|---|
| HS15801 | OLFACTOMEDIN-RELATED |
| HS15802 | VILLIN |
| HS15803 | |
| HS15804 | TGF-BETA FAMILY |
| HS15805 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS15806 | COILED-COIL DOMAIN-CONTAINING PROTEIN 120 FAMILY MEMBER |
| HS15807 | ADIPOR/PROGESTIN RECEPTOR-RELATED |
| HS15808 | GUANINE NUCLEOTIDE EXCHANGE FACTOR MSS4 |
| HS15809 | LYSINE-SPECIFIC DEMETHYLASE |
| HS15810 | NEGATIVE ELONGATION FACTOR D |
| HS15811 | CYSTEINE PROTEASE FAMILY C1-RELATED |
| HS15812 | LEUCINE AMINOPEPTIDASE-RELATED |
| HS15813 | MYOTROPHIN |
| HS15814 | SOLUTE CARRIER PROTEIN FAMILY 11 MEMBER |
| HS15815 | MIR-INTERACTING SAPOSIN-LIKE PROTEIN |
| HS15816 | SYNTAXIN |
| HS15817 | DIACYLGLYCEROL KINASE |
| HS15818 | NUCLEAR HORMONE RECEPTOR |
| HS15819 | TRAF FAMILY MEMBER-ASSOCIATED NF-KAPPA-B ACTIVATOR |
| HS15820 | NGFI-A BINDING PROTEIN |
| HS15821 | DNAJ HOMOLOG SUBFAMILY C MEMBER 14 |
| HS15822 | 3'(2'),5'-BISPHOSPHATE NUCLEOTIDASE 1 |
| HS15823 | |
| HS15824 | S100 CALCIUM-BINDING PROTEIN |
| HS15825 | AMMONIUM TRANSPORTER |
| HS15826 | ACYL-COENZYME A THIOESTERASE-RELATED |
| HS15827 | SYS1 |
| HS15828 | NEURITIN-RELATED |
| HS15829 | TRANSLOCON-ASSOCIATED PROTEIN, ALPHA SUBUNIT |
| HS15830 | ADP-RIBOSYLATION FACTOR GTPASE-ACTIVATING PROTEIN 1 |
| HS15831 | ENGULFMENT AND CELL MOTILITY |
| HS15832 | SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN |
| HS15833 | |
| HS15834 | SODIUM/CHLORIDE DEPENDENT TRANSPORTER |
| HS15835 | CHITINASE |
| HS15836 | CHITINASE |
| HS15837 | AGAP008170-PA |
| HS15838 | AGAP008170-PA |
| HS15839 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS15840 | AGAP008170-PA |
| HS15841 | INTERLEUKIN-19-RELATED |
| HS15842 | INTERLEUKIN-19-RELATED |
| HS15843 | SERINE/THREONINE-PROTEIN KINASE |
| HS15844 | DUAL SPECIFICITY PROTEIN KINASE |
| HS15845 | RASSF |
| HS15846 | IKB KINASE |
| HS15847 | SLIT-ROBO RHO GTPASE ACTIVATING PROTEIN |
| HS15848 | PROTEIN FAM72A-RELATED |
| HS15849 | FORKHEAD BOX P, ISOFORM C |
| HS15850 | MYOD FAMILY INHIBITOR |
