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 |
|---|---|
| HS17051 | FIBROBLAST GROWTH FACTOR |
| HS17052 | NUCLEOPLASMIN |
| HS17053 | IP01054P |
| HS17054 | |
| HS17055 | EUKARYOTE SPECIFIC DSRNA BINDING PROTEIN |
| HS17056 | CALCIUM BINDING PROTEIN |
| HS17057 | BARDET-BIEDL SYNDROME 12 PROTEIN |
| HS17058 | FIBROBLAST GROWTH FACTOR |
| HS17059 | NUDIX HYDROLASE RELATED |
| HS17060 | AAA-FAMILY ATPASE |
| HS17061 | SPROUTY |
| HS17062 | MOLTING PROTEIN MLT-4 |
| HS17063 | CADHERIN-87A |
| HS17064 | |
| HS17065 | LEPTIN RECEPTOR-RELATED |
| HS17066 | SMALL NUCLEAR RNA ACTIVATING COMPLEX, POLYPEPTIDE 1 |
| HS17067 | ADP-RIBOSYLATION FACTOR-LIKE PROTEIN 9-RELATED |
| HS17068 | TESTICULAR HAPLOID EXPRESSED GENE PROTEIN |
| HS17069 | HOMEODOMAIN-ONLY PROTEIN |
| HS17070 | SEC24-RELATED PROTEIN |
| HS17071 | THIOSULFATE SULFURTRANSFERASE/RHODANESE-LIKE DOMAIN-CONTAINING PROTEIN 2 |
| HS17072 | CAP BINDING PROTEIN |
| HS17073 | MAJOR FACILITATOR SUPERFAMILY PROTEIN-RELATED |
| HS17074 | |
| HS17075 | POLYCOMB GROUP RING FINGER PROTEIN |
| HS17076 | |
| HS17077 | COMPLEXIN |
| HS17078 | WD40 REPEAT PROTEIN |
| HS17079 | ELONGATOR COMPLEX PROTEIN 1 |
| HS17080 | NUCLEAR FUSION PROTEIN FUS2 |
| HS17081 | PEROXISOME PROLIFERATOR ACTIVATED RECEPTOR GAMMA COACTIVATOR 1 PGC-1 -RELATED |
| HS17082 | |
| HS17083 | CYCLIC NUCLEOTIDE PHOSPHODIESTERASE |
| HS17084 | SULFATE TRANSPORTER |
| HS17085 | 5-HYDROXYTRYPTAMINE RECEPTOR |
| HS17086 | VESICULAR MANNOSE-BINDING LECTIN |
| HS17087 | |
| HS17088 | CADHERIN-23 |
| HS17089 | AMINO ACID TRANSPORTER |
| HS17090 | COPPER TRANSPORT PROTEIN ATOX1 |
| HS17091 | RAS GTPASE-ACTIVATING PROTEIN-BINDING PROTEIN |
| HS17092 | SPARC OSTEONECTIN |
| HS17093 | NEUROTRANSMITTER GATED ION CHANNEL |
| HS17094 | SI:CH211-196P9.1-RELATED |
| HS17095 | MITOCHONDRIAL BASIC AMINO ACIDS TRANSPORTER-RELATED |
| HS17096 | |
| HS17097 | TRANSCRIPTION FACTOR COE FAMILY MEMBER |
| HS17098 | UBIQUITIN-CONJUGATING ENZYME E2 |
| HS17099 | NF-KAPPA-B INHIBITOR ALPHA |
| HS17100 | DIACYLGLYCEROL KINASE |
