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 |
|---|---|
| HS11751 | CHYMOTRYPSIN-LIKE ELASTASE FAMILY MEMBER |
| HS11752 | TIM23 |
| HS11753 | RNA-BINDING PROTEIN RELATED |
| HS11754 | TUBULIN FOLDING COFACTOR C |
| HS11755 | GLIOMA TUMOR SUPPRESSOR CANDIDATE REGION GENE 1 |
| HS11756 | |
| HS11757 | GTP-BINDING PROTEIN ALPHA SUBUNIT |
| HS11758 | LP21163P |
| HS11759 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS11760 | |
| HS11761 | CENTROMERE PROTEIN E |
| HS11762 | TWEETY-RELATED |
| HS11763 | 60S RIBOSOMAL PROTEIN L38 |
| HS11764 | PROTEIN SIDEKICK |
| HS11765 | CDC42 EFFECTOR PROTEIN BORG |
| HS11766 | TEKTIN |
| HS11767 | EPITHELIAL MEMBRANE PROTEIN-RELATED |
| HS11768 | HEPARAN SULFATE SULFOTRANSFERASE |
| HS11769 | PROTOHEME IX FARNESYLTRANSFERASE, MITOCHONDRIAL |
| HS11770 | HEPARAN SULFATE SULFOTRANSFERASE |
| HS11771 | UBIQUITIN LIGASE SPECIFICITY FACTOR/HREP PROTEIN |
| HS11772 | ZINC FINGER PROTEIN |
| HS11773 | NEURABIN |
| HS11774 | ALPHA-/EPSILON-SARCOGLYCAN FAMILY MEMBER |
| HS11775 | COLLAGEN ALPHA |
| HS11776 | BLR7054 PROTEIN |
| HS11777 | GUANINE NUCLEOTIDE-BINDING PROTEIN GAMMA SUBUNIT |
| HS11778 | TRANSMEMBRANE PROTEIN 101 |
| HS11779 | LSM12 HOMOLOG |
| HS11780 | GLUCOSE-6-PHOSPHATASE |
| HS11781 | ROLLING PEBBLES, ISOFORM B |
| HS11782 | UNCHARACTERIZED |
| HS11783 | CYTOCHROME C OXIDASE ASSEMBLY FACTOR 3, MITOCHONDRIAL |
| HS11784 | SERINE/THREONINE-PROTEIN KINASE WNK WITH NO LYSINE -RELATED |
| HS11785 | VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN VPS25 |
| HS11786 | RHO/RAC/CDC GTPASE-ACTIVATING PROTEIN |
| HS11787 | TRANSMEMBRANE PROTEIN 180 |
| HS11788 | SEMAPHORIN |
| HS11789 | 39S RIBOSOMAL PROTEIN L43 |
| HS11790 | T7-LIKE MITOCHONDRIAL DNA HELICASE |
| HS11791 | ZIPPER PUTATIVE TUMOR SUPPRESSOR 2 HOMOLOG-LIKE PROTEIN-RELATED |
| HS11792 | SI:CH211-196P9.1-RELATED |
| HS11793 | PDZ DOMAIN CONTAINING WHIRLIN AND HARMONIN-RELATED |
| HS11794 | - |
| HS11795 | |
| HS11796 | |
| HS11797 | TYPE I INTERFERON |
| HS11798 | VOLTAGE-GATED CATION CHANNEL CALCIUM AND SODIUM |
| HS11799 | TYPE I INTERFERON |
| HS11800 | PLECKSTRIN HOMOLOGY DOMAIN CONTAINING PROTEIN |
