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 |
|---|---|
| HS17601 | CALCIUM BINDING PROTEINS |
| HS17602 | NADH-UBIQUINONE OXIDOREDUCTASE SUBUNIT B14.5B |
| HS17603 | |
| HS17604 | TPA-INDUCED TRANSMEMBRANE PROTEIN |
| HS17605 | |
| HS17606 | G-PROTEIN COUPLED RECEPTOR |
| HS17607 | E3 UBIQUITIN-PROTEIN LIGASE TRIM36-RELATED |
| HS17608 | |
| HS17609 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS17610 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS17611 | BTK-BINDING PROTEIN-RELATED |
| HS17612 | G-PROTEIN COUPLED RECEPTOR |
| HS17613 | SERINE/THREONINE-PROTEIN KINASE NEK3 |
| HS17614 | LIPOMA HMGIC FUSION PARTNER-LIKE PROTEIN |
| HS17615 | COMPONENT OF OLIGOMERIC GOLGI COMPLEX 6 |
| HS17616 | FORKHEAD BOX PROTEIN O |
| HS17617 | MITOCHONDRIAL BASIC AMINO ACIDS TRANSPORTER-RELATED |
| HS17618 | BAND 7 PROTEIN-RELATED |
| HS17619 | TOUCAN, ISOFORM A |
| HS17620 | INNER MEMBRANE TRANSPORTER YGJI-RELATED |
| HS17621 | 1,4-ALPHA-GLUCAN-BRANCHING ENZYME |
| HS17622 | IG-LIKE DOMAIN-CONTAINING PROTEIN |
| HS17623 | RWD DOMAIN CONTAINING PROTEIN 2 |
| HS17624 | UBIQUITIN CARBOXYL-TERMINAL HYDROLASE |
| HS17625 | AGAP004733-PA |
| HS17626 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS17627 | CLAUDIN |
| HS17628 | CLAUDIN |
| HS17629 | CLAUDIN |
| HS17630 | TIAM (MAMMALIAN TUMOR INVASION AND METASTASIS FACTOR) HOMOLOG |
| HS17631 | RNA PROCESSING PROTEIN LD23810P |
| HS17632 | MELANOCORTIN-2 RECEPTOR ACCESSORY PROTEIN 2 |
| HS17633 | NUCLEOLAR PRERIBOSOMAL-ASSOCIATED PROTEIN 1 |
| HS17634 | CADHERIN-87A |
| HS17635 | CADHERIN-23 |
| HS17636 | ARFAPTIN-RELATED |
| HS17637 | INVERTED FORMIN-2 |
| HS17638 | UNCHARACTERIZED |
| HS17639 | E3 UBIQUITIN-PROTEIN LIGASE NHLRC1-RELATED |
| HS17640 | MATRIX PROTEIN, PUTATIVE-RELATED |
| HS17641 | TRANSIENT RECEPTOR POTENTIAL CHANNEL |
| HS17642 | PERIOSTIN-RELATED |
| HS17643 | |
| HS17644 | SPARTIN |
| HS17645 | HIGH MOBILITY GROUP PROTEIN DSP1 |
| HS17646 | TESTIS-EXPRESSED PROTEIN 26 ISOFORM X3 |
| HS17647 | WD40 REPEAT DOMAIN 95 |
| HS17648 | |
| HS17649 | FRINGE-RELATED |
| HS17650 | FURRY-RELATED |
