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 |
|---|---|
| HS03601 | |
| HS03602 | LYSINE-SPECIFIC DEMETHYLASE |
| HS03603 | E3 UBIQUITIN-PROTEIN LIGASE UHRF-RELATED |
| HS03604 | SMALL CONDUCTANCE CALCIUM-ACTIVATED POTASSIUM CHANNEL |
| HS03605 | UNCHARACTERIZED |
| HS03606 | CLUSTERIN ASSOCIATED PROTEIN 1 |
| HS03607 | |
| HS03608 | |
| HS03609 | SODIUM-COUPLED MONOCARBOXYLATE TRANSPORTER |
| HS03610 | TYROSINE-PROTEIN KINASE HOPSCOTCH |
| HS03611 | LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEIN 2-RELATED |
| HS03612 | NADH-UBIQUINONE OXIDOREDUCTASE SUBUNIT B |
| HS03613 | SERINE/THREONINE-PROTEIN KINASE |
| HS03614 | INTERLEUKIN-27 SUBUNIT BETA |
| HS03615 | LD33804P |
| HS03616 | CREB-REGULATED TRANSCRIPTION COACTIVATOR |
| HS03617 | THROMBOSPONDIN |
| HS03618 | TRIMERIC INTRACELLULAR CATION CHANNEL |
| HS03619 | SMALL INTEGRAL MEMBRANE PROTEIN 7 |
| HS03620 | CRSP70 |
| HS03621 | SOLUTE CARRIER FAMILY 35 |
| HS03622 | G-PROTEIN COUPLED RECEPTOR FAMILY 1 MEMBER |
| HS03623 | SH2 CONTAINING ADAPTOR PRAM-1 RELATED |
| HS03624 | PEROXISOMAL BIOGENESIS FACTOR 11 |
| HS03625 | SYNTENIN RELATED |
| HS03626 | ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA |
| HS03627 | ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA |
| HS03628 | PROSTAGLANDIN G/H SYNTHASE |
| HS03629 | CYTOSOLIC PHOSPHOLIPASE A2 |
| HS03630 | ARP2/3 COMPLEX 16 KD SUBUNIT P16-ARC |
| HS03631 | |
| HS03632 | PROTEIN SIDEKICK |
| HS03633 | CONTACTIN 5 |
| HS03634 | BASIGIN RELATED |
| HS03635 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS03636 | |
| HS03637 | KELCH PROTEIN |
| HS03638 | PHOSDUCIN-LIKE PROTEIN |
| HS03639 | |
| HS03640 | |
| HS03641 | |
| HS03642 | NUCLEOPROTEIN TPR-RELATED |
| HS03643 | HEMOPEXIN DOMAIN-CONTAINING PROTEIN |
| HS03644 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS03645 | PROLINE-SERINE-THREONINE PHOSPHATASE INTERACTING PROTEIN 1 |
| HS03646 | RFX TRANSCRIPTION FACTOR FAMILY |
| HS03647 | |
| HS03648 | LONG-CHAIN-FATTY-ACID--COA LIGASE |
| HS03649 | AHD DOMAIN-CONTAINING PROTEIN |
| HS03650 | ALKALINE CERAMIDASE |
