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 |
|---|---|
| HS22001 | CARBON CATABOLITE REPRESSOR PROTEIN 4 |
| HS22002 | ETS |
| HS22003 | |
| HS22004 | - |
| HS22005 | N-TERMINAL ACETYLTRANSFERASE-RELATED |
| HS22006 | |
| HS22007 | MASTERMIND-LIKE |
| HS22008 | SHORT COILED COIL PROTEIN |
| HS22009 | CALRETICULIN AND CALNEXIN |
| HS22010 | EXOSOME COMPLEX EXONUCLEASE RIBOSOMAL RNA PROCESSING PROTEIN |
| HS22011 | MULTIDRUG RESISTANCE PROTEIN |
| HS22012 | FERM AND PDZ DOMAIN-CONTAINING PROTEIN FAMILY MEMBER |
| HS22013 | NON-LTR RETROLELEMENT REVERSE TRANSCRIPTASE-LIKE PROTEIN-RELATED |
| HS22014 | AXIN |
| HS22015 | MYELOID-ASSOCIATED DIFFERENTIATION MARKER MYADM FAMILY MEMBER |
| HS22016 | TEX2 PROTEIN-RELATED |
| HS22017 | |
| HS22018 | COILED-COIL DOMAIN-CONTAINING PROTEIN 40 |
| HS22019 | DISKS LARGE HOMOLOG 5 |
| HS22020 | E3 SUMO-PROTEIN LIGASE CBX4 |
| HS22021 | |
| HS22022 | POLYCOMB GROUP PROTEIN PC |
| HS22023 | DIACYLGLYCEROL KINASE |
| HS22024 | |
| HS22025 | B-BOX DOMAIN CONTAINING |
| HS22026 | SODIUM/DICARBOXYLATE SYMPORTER-RELATED |
| HS22027 | RAS GTPASE-ACTIVATING PROTEINS |
| HS22028 | SEC14 RELATED PROTEIN |
| HS22029 | ENDONUCLEASE V |
| HS22030 | PENTRAXIN |
| HS22031 | REGULATORY-ASSOCIATED PROTEIN OF MTOR |
| HS22032 | IMMUNOGLOBULIN FC RECEPTOR |
| HS22033 | PROTEIN DISULFIDE ISOMERASE |
| HS22034 | RING BOX |
| HS22035 | RNA AND EXPORT FACTOR BINDING PROTEIN |
| HS22036 | RHO GDP-DISSOCIATION INHIBITOR |
| HS22037 | PROTEIN PHOSPHATASE 1 REGULATORY SUBUNIT 12 |
| HS22038 | NICOTINATE-NUCLEOTIDE PYROPHOSPHORYLASE [CARBOXYLATING] |
| HS22039 | INTEGRIN ALPHA |
| HS22040 | ZINC FINGER CCCH DOMAIN-CONTAINING PROTEI |
| HS22041 | GROUP XII SECRETORY PHOSPHOLIPASE A2 FAMILY MEMBER |
| HS22042 | |
| HS22043 | |
| HS22044 | SECERNIN |
| HS22045 | METALLOPROTEASE TLDD |
| HS22046 | KRUEPPEL-LIKE TRANSCRIPTION FACTOR |
| HS22047 | CELL CYCLE CONTROL PROTEIN CWF25 |
| HS22048 | PHOSPHATIDYLINOSITOL-4-PHOSPHATE 5-KINASE |
| HS22049 | RING FINGER DOMAIN-CONTAINING, POLYCOMB GROUP COMPONENT |
| HS22050 | CDGSH IRON SULFUR DOMAIN PROTEIN HOMOLOG |
