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 |
|---|---|
| HS16901 | TRANSCRIPTION COFACTOR VESTIGIAL-LIKE PROTEIN |
| HS16902 | ADHESION G-PROTEIN COUPLED RECEPTOR |
| HS16903 | MICROTUBULE-ASSOCIATED PROTEIN |
| HS16904 | FOUR AND A HALF LIM DOMAINS PROTEIN 1 |
| HS16905 | SODIUM/HYDROGEN EXCHANGER |
| HS16906 | TRANSCRIPTION INITIATION FACTOR TFIID 55 KD SUBUNIT-RELATED |
| HS16907 | ARYL HYDROCARBON RECEPTOR INTERACTING PROTEIN RELATED |
| HS16908 | E3 UBIQUITIN-PROTEIN LIGASE KCMF1 |
| HS16909 | CENTROMERE PROTEIN I |
| HS16910 | SPINAL CORD EXPRESSION PROTEIN 4 |
| HS16911 | ADP-RIBOSYLATION FACTOR-LIKE PROTEIN 13B |
| HS16912 | MEMBRANE TRANSPORT PROTEIN XK FAMILY MEMBER |
| HS16913 | NADPH OXIDASE |
| HS16914 | CLEAVAGE STIMULATION FACTOR SUBUNIT 2 |
| HS16915 | AGAP007537-PB |
| HS16916 | SPOT14 FAMILY MEMBER |
| HS16917 | TETRASPANIN |
| HS16918 | HYR DOMAIN-CONTAINING PROTEIN |
| HS16919 | BITESIZE, ISOFORM I |
| HS16920 | |
| HS16921 | ZINC FINGER DHHC DOMAIN CONTAINING PROTEIN |
| HS16922 | SAM-DOMAIN, SH3 AND NUCLEAR LOCALIZATION SIGNALS PROTEIN RELATED |
| HS16923 | XAA-PRO AMINOPEPTIDASE 1 |
| HS16924 | APELIN |
| HS16925 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS16926 | GLIAL FIBRILLARY ACIDIC PROTEIN |
| HS16927 | INOSITOL 5-PHOSPHATASE |
| HS16928 | PROTEIN EVA-1 |
| HS16929 | CHLORIDE INTRACELLULAR CHANNEL PROTEIN 6-RELATED |
| HS16930 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS16931 | BETA1,3-GALACTOSYLTRANSFERASE |
| HS16932 | MCT-1 PROTEIN |
| HS16933 | CULLIN |
| HS16934 | LYSOSOME-ASSOCIATED MEMBRANE GLYCOPROTEIN |
| HS16935 | |
| HS16936 | SODIUM/POTASSIUM-DEPENDENT ATPASE BETA SUBUNIT |
| HS16937 | - |
| HS16938 | AGAP004733-PA |
| HS16939 | NF-KAPPA B ACTIVATING PROTEIN |
| HS16940 | NADH-UBIQUINONE OXIDOREDUCTASE MWFE SUBUNIT |
| HS16941 | UPF3 REGULATOR OF NONSENSE TRANSCRIPTS-LIKE PROTEIN |
| HS16942 | RIBOSOMAL PROTEIN L39E |
| HS16943 | UNCHARACTERIZED |
| HS16944 | SECURIN-3 |
| HS16945 | SEPTIN |
| HS16946 | G PATCH DOMAIN CONTAINING PROTEIN 2 |
| HS16947 | UBIQUITIN-CONJUGATING ENZYME E2 |
| HS16948 | ETS |
| HS16949 | CHONDROMODULIN-RELATED |
| HS16950 | CADHERIN-87A |
