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 |
|---|---|
| HS01051 | CONNEXIN |
| HS01052 | NECTIN-RELATED |
| HS01053 | CONNEXIN |
| HS01054 | SI:CH211-196P9.1-RELATED |
| HS01055 | FOLLISTATIN-RELATED |
| HS01056 | - |
| HS01057 | GABA-B RECEPTOR |
| HS01058 | B-BOX DOMAIN CONTAINING |
| HS01059 | GLYCOGEN SYNTHASE KINASE-3 ALPHA |
| HS01060 | KELCH PROTEIN |
| HS01061 | UNCHARACTERIZED |
| HS01062 | CELL SURFACE GLYCOPROTEIN OX2 RECEPTOR PRECURSOR |
| HS01063 | OX-2 MEMBRANE GLYCOPROTEIN |
| HS01064 | G-PROTEIN COUPLED RECEPTOR 89-RELATED |
| HS01065 | PDZ DOMAIN CONTAINING PROTEIN |
| HS01066 | G-PROTEIN COUPLED RECEPTOR |
| HS01067 | TRANSMEMBRANE PROTEIN FAM155 |
| HS01068 | ALPHA/BETA HYDROLASE DOMAIN-CONTAINING PROTEIN |
| HS01069 | UNCONVENTIONAL MYOSIN-XVI |
| HS01070 | INSULIN RECEPTOR SUBSTRATE |
| HS01071 | COLLAGEN ALPHA |
| HS01072 | COLLAGEN ALPHA |
| HS01073 | RAS-RELATED PROTEIN RAB |
| HS01074 | INHIBITOR OF GROWTH PROTEIN |
| HS01075 | ATP-DEPENDENT (S)-NAD(P)H-HYDRATE DEHYDRATASE FAMILY MEMBER |
| HS01076 | UBIQUITIN-CONJUGATING ENZYME E2 |
| HS01077 | ANKYRIN REPEAT FAMILY PROTEIN |
| HS01078 | MAP/MICROTUBULE AFFINITY-REGULATING KINASE |
| HS01079 | U2 SNRNP AUXILIARY FACTOR, SMALL SUBUNIT |
| HS01080 | ETS |
| HS01081 | ALZHEIMER'S DISEASE BETA-AMYLOID RELATED |
| HS01082 | BUTYROPHILIN |
| HS01083 | N-ACETYLGLUCOSAMINYL-PHOSPHATIDYLINOSITOL BIOSYNTHETIC PROTEIN |
| HS01084 | SOWAH (DROSOPHILA) HOMOLOG |
| HS01085 | RAS, DI-RAS, AND RHEB FAMILY MEMBERS OF SMALL GTPASE SUPERFAMILY |
| HS01086 | MUSCLEBLIND-LIKE PROTEIN |
| HS01087 | HEPARAN SULFATE 6-O-SULFOTRANSFERASE 3 |
| HS01088 | UDP-GLUCOSE GLYCOPROTEIN:GLUCOSYLTRANSFERASE |
| HS01089 | LD25575P |
| HS01090 | CLAUDIN |
| HS01091 | CLAUDIN |
| HS01092 | ATP-BINDING CASSETTE SUB-FAMILY C |
| HS01093 | SOX TRANSCRIPTION FACTOR |
| HS01094 | TYROSINASE FAMILY MEMBER |
| HS01095 | |
| HS01096 | GLYPICAN |
| HS01097 | FAST LEU-RICH DOMAIN-CONTAINING |
| HS01098 | SLIT AND NTRK-LIKE PROTEIN 4-RELATED |
| HS01099 | CADHERIN-87A |
| HS01100 | CADHERIN-87A |
