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 |
|---|---|
| HS04001 | SODIUM/DICARBOXYLATE SYMPORTER-RELATED |
| HS04002 | ZINC/IRON TRANSPORTER |
| HS04003 | LD24721P |
| HS04004 | PROTEASE M3 THIMET OLIGOPEPTIDASE-RELATED |
| HS04005 | NACHT DOMAIN- AND WD REPEAT-CONTAINING PROTEIN 1 |
| HS04006 | MULTIPLE PDZ DOMAIN PROTEIN |
| HS04007 | BETA-AMYLOID BINDING PROTEIN-RELATED |
| HS04008 | NUCLEAR FACTOR I |
| HS04009 | MATRIX PROTEIN, PUTATIVE-RELATED |
| HS04010 | MATRIX PROTEIN, PUTATIVE-RELATED |
| HS04011 | DED DOMAIN-CONTAINING PROTEIN |
| HS04012 | DED DOMAIN-CONTAINING PROTEIN |
| HS04013 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS04014 | SYNAPTIC ADHESION-LIKE MOLECULE SALM |
| HS04015 | |
| HS04016 | LON PROTEASE |
| HS04017 | RADIAL SPOKEHEAD-RELATED |
| HS04018 | PBS LYASE HEAT-LIKE PROTEIN |
| HS04019 | FI04035P |
| HS04020 | SIALYLTRANSFERASE |
| HS04021 | GDNF SUBFAMILY OF TGF-BETA FAMILY |
| HS04022 | SNF2/RAD54 FAMILY MEMBER |
| HS04023 | MUF1 |
| HS04024 | LYSINE-SPECIFIC DEMETHYLASE |
| HS04025 | CYTOKINE RECEPTOR |
| HS04026 | 52 KDA REPRESSOR OF THE INHIBITOR OF THE PROTEIN KINASE-LIKE PROTEIN-RELATED |
| HS04027 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS04028 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS04029 | ISOMERASE |
| HS04030 | KICSTOR COMPLEX PROTEIN SZT2 |
| HS04031 | RNA HELICASE |
| HS04032 | TRANSCRIPTION INITIATION FACTOR TFIID SUBUNIT 4 |
| HS04033 | CADHERIN-23 |
| HS04034 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS04035 | UNCHARACTERIZED |
| HS04036 | |
| HS04037 | SI:CH211-196P9.1-RELATED |
| HS04038 | UNCHARACTERIZED |
| HS04039 | PROTEIN CBG26694 |
| HS04040 | DESMOGLEIN FAMILY MEMBER |
| HS04041 | BETA-1,4-GALACTOSYLTRANSFERASE |
| HS04042 | SOLUTE CARRIER FAMILY 5 |
| HS04043 | 39S RIBOSOMAL PROTEIN L55, MITOCHONDRIAL |
| HS04044 | |
| HS04045 | CYSTINOSIN |
| HS04046 | TRANSPORT PROTEIN TRAPP |
| HS04047 | COMM DOMAIN CONTAINING PROTEIN 2 |
| HS04048 | LAMIN DM0-RELATED |
| HS04049 | 60S RIBOSOMAL PROTEIN L36 |
| HS04050 | DESMOGLEIN FAMILY MEMBER |
