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 |
|---|---|
| HS12301 | AGAP007537-PB |
| HS12302 | E3 UBIQUITIN-PROTEIN LIGASE TRIM |
| HS12303 | LEUCINE RICH REPEAT IN FLII INTERACTING PROTEIN |
| HS12304 | MYELIN-ASSOCIATED OLIGODENDROCYTIC BASIC PROTEIN MOBP -RELATED |
| HS12305 | IQ CALMODULIN-BINDING MOTIF CONTAINING PROTEIN 1 |
| HS12306 | RHO GUANINE EXCHANGE FACTOR-RELATED |
| HS12307 | BETA-CAROTENE DIOXYGENASE |
| HS12308 | TRANSLATION INITIATION FACTOR IF-2-RELATED |
| HS12309 | LIPOATE-PROTEIN LIGASE |
| HS12310 | SI:DKEY-126G1.9-RELATED |
| HS12311 | SOLUTE CARRIER FAMILY 22 MEMBER |
| HS12312 | SH3YL1 PROTEIN |
| HS12313 | DPH3 HOMOLOG-RELATED |
| HS12314 | SI:CH211-196P9.1-RELATED |
| HS12315 | HOMEOBOX PROTEIN GBX |
| HS12316 | CENTAURIN-GAMMA-1A |
| HS12317 | RAS, DI-RAS, AND RHEB FAMILY MEMBERS OF SMALL GTPASE SUPERFAMILY |
| HS12318 | TGF-BETA FAMILY |
| HS12319 | CLASP |
| HS12320 | CYCLIC NUCLEOTIDE PHOSPHODIESTERASE |
| HS12321 | CHLORIDE CHANNEL PROTEIN |
| HS12322 | SH3 DOMAIN-CONTAINING PROTEIN |
| HS12323 | |
| HS12324 | ARYL HYDROCARBON RECEPTOR |
| HS12325 | |
| HS12326 | SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN |
| HS12327 | UNCHARACTERIZED |
| HS12328 | NGFI-A BINDING PROTEIN |
| HS12329 | |
| HS12330 | GLUTAMINASE |
| HS12331 | |
| HS12332 | SIGNAL TRANSDUCER AND ACTIVATOR OF TRANSCRIPTION |
| HS12333 | TGF-BETA FAMILY |
| HS12334 | |
| HS12335 | ASPARTYL AMINOPEPTIDASE |
| HS12336 | CLAUDIN |
| HS12337 | SMALL UBIQUITIN-RELATED MODIFIER |
| HS12338 | - |
| HS12339 | TRANSMEMBRANE PROTEIN 198 FAMILY MEMBER |
| HS12340 | IA-2 PROTEIN TYROSINE PHOSPHATASE, ISOFORM C |
| HS12341 | TUBULIN |
| HS12342 | TUBULIN |
| HS12343 | TUBULIN |
| HS12344 | AMPHIPHYSIN |
| HS12345 | HEDGEHOG |
| HS12346 | NON-HOMOLOGOUS END-JOINING FACTOR 1 |
| HS12347 | TRAF AND TNF RECEPTOR-ASSOCIATED PROTEIN |
| HS12348 | UBIQUITIN-PROTEIN LIGASE E3A-RELATED |
| HS12349 | T-COMPLEX-ASSOCIATED-TESTIS-EXPRESSED 1/ DYNEIN LIGHT CHAIN |
| HS12350 | NADPH OXIDASE |
