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 |
|---|---|
| HS14401 | DNA CYTOSINE-5- -METHYLTRANSFERASE 3-RELATED |
| HS14402 | - |
| HS14403 | G PROTEIN-COUPLED RECEPTOR KINASE/RIBOSOMAL PROTEIN S6 KINASE |
| HS14404 | |
| HS14405 | |
| HS14406 | |
| HS14407 | RAB GDP/GTP EXCHANGE FACTOR |
| HS14408 | SODIUM/POTASSIUM/CALCIUM EXCHANGER |
| HS14409 | RE60986P |
| HS14410 | INNER MEMBRANE TRANSPORTER YGJI-RELATED |
| HS14411 | CASEIN KINASE-RELATED |
| HS14412 | UBIQUITIN LIGASE PROTEIN PHF9 FANCONI ANEMIA GROUP L PROTEIN |
| HS14413 | B-CELL LYMPHOMA/LEUKEMIA 11 |
| HS14414 | 5'-NUCLEOTIDASE DOMAIN-CONTAINING |
| HS14415 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS14416 | BLOC-1-RELATED COMPLEX SUBUNIT 7 BORSC7 |
| HS14417 | STEROID 17-ALPHA-HYDROXYLASE/17,20 LYASE |
| HS14418 | KRUEPPEL-LIKE TRANSCRIPTION FACTOR |
| HS14419 | CYTOPLASMIC TRNA 2-THIOLATION PROTEIN 2 |
| HS14420 | RAP1 GTPASE-GDP DISSOCIATION STIMULATOR 1 |
| HS14421 | ALDOSE-1-EPIMERASE |
| HS14422 | MATRIN 3/NUCLEAR PROTEIN 220-RELATED |
| HS14423 | CELL DIVISION PROTEIN KINASE |
| HS14424 | CHCHD1 |
| HS14425 | SCAVENGER RECEPTOR DOMAIN-CONTAINING |
| HS14426 | ZINC FINGER SWIM DOMAIN CONTAINING PROTEIN 4, 5, 6 |
| HS14427 | HEPARAN SULFATE SULFOTRANSFERASE |
| HS14428 | DNA-DIRECTED RNA POLYMERASE |
| HS14429 | F-BOX ONLY PROTEIN 28 |
| HS14430 | CYCLIC NUCLEOTIDE-DEPENDENT PROTEIN KINASE |
| HS14431 | SI:CH211-266K2.1 |
| HS14432 | HISTONE H2A |
| HS14433 | GUANYL-NUCLEOTIDE EXCHANGE FACTOR |
| HS14434 | PITUITARY HOMEOBOX HOMOLOG PTX1 |
| HS14435 | LIPASE |
| HS14436 | ALPHA KINASE/ELONGATION FACTOR 2 KINASE |
| HS14437 | ENOLASE |
| HS14438 | SHOOTIN-1 |
| HS14439 | V-TYPE PROTON ATPASE SUBUNIT B |
| HS14440 | HOMEOBOX PROTEIN EMX-RELATED |
| HS14441 | CYTOSOLIC PHOSPHOLIPASE A2 |
| HS14442 | POTASSIUM CHANNEL, SUBFAMILY K |
| HS14443 | - |
| HS14444 | PDZ DOMAIN-CONTAINING PROTEIN 8 |
| HS14445 | ECTODYSPLASIN-A RECEPTOR-ASSOCIATED ADAPTER PROTEIN |
| HS14446 | PERIAXIN/AHNAK |
| HS14447 | POL PROTEIN |
| HS14448 | ZINC KNUCKLE DOMAINCONTAINING PROTEIN-RELATED |
| HS14449 | FLAP ENDONUCLEASE FAMILY MEMBER |
| HS14450 | GOLGI MEMBRANE PROTEIN YIP1 |
