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 |
|---|---|
| HS20451 | HOMEOBOX PROTEIN TRANSCRIPTION FACTORS |
| HS20452 | G-PROTEIN COUPLED RECEPTOR |
| HS20453 | FALZ-RELATED BROMODOMAIN-CONTAINING PROTEINS |
| HS20454 | PROTEIN PET100 HOMOLOG, MITOCHONDRIAL |
| HS20455 | VESICLE PROTEIN SORTING-ASSOCIATED |
| HS20456 | PURKINJE CELL PROTEIN 2 |
| HS20457 | MYOSIN HEAVY CHAIN, NON-MUSCLE |
| HS20458 | PRE-MRNA SPLICING FACTOR |
| HS20459 | UNCHARACTERIZED |
| HS20460 | NUCLEAR RECEPTOR SUBFAMILY 5 GROUP A |
| HS20461 | HEME-BINDING PROTEIN-RELATED |
| HS20462 | NOTCH LIGAND FAMILY MEMBER |
| HS20463 | RETINOL DEHYDROGENASE-RELATED |
| HS20464 | COLLAGEN ALPHA |
| HS20465 | OLFACTOMEDIN-RELATED |
| HS20466 | |
| HS20467 | INTERCELLULAR ADHESION MOLECULE |
| HS20468 | FIBRINOGEN/TENASCIN/ANGIOPOEITIN |
| HS20469 | AGAP001331-PA-RELATED |
| HS20470 | WD REPEAT CONTAINING PROTEIN |
| HS20471 | VOLTAGE AND LIGAND GATED POTASSIUM CHANNEL |
| HS20472 | GLIAL FIBRILLARY ACIDIC PROTEIN |
| HS20473 | MAP KINASE KINASE KINASE SSK2-RELATED-RELATED |
| HS20474 | OS06G0237300 PROTEIN |
| HS20475 | ATP-DEPENDENT RNA HELICASE RHLE-RELATED |
| HS20476 | SERINE/THREONINE-PROTEIN KINASE FRAY2 |
| HS20477 | ZINC FINGER PROTEIN 183 |
| HS20478 | RUN DOMAIN-CONTAINING 3 PROTEIN RUNDC3 |
| HS20479 | |
| HS20480 | AGAP011572-PA |
| HS20481 | SOLUTE CARRIER FAMILY 35 MEMBER B |
| HS20482 | NADH-UBIQUINONE OXIDOREDUCTASE MLRQ SUBUNIT |
| HS20483 | NEUREXOPHILIN |
| HS20484 | TUMOR NECROSIS FACTOR RECEPTOR |
| HS20485 | GTPASE, IMAP FAMILY MEMBER-RELATED |
| HS20486 | |
| HS20487 | ANION EXCHANGE PROTEIN |
| HS20488 | UPSTREAM BINDING TRANSCRIPTION FACTOR |
| HS20489 | ATAXIN-7-LIKE PROTEIN 3 |
| HS20490 | PROTEIN C7ORF21 |
| HS20491 | ANKYRIN REPEAT PROTEIN |
| HS20492 | UNCHARACTERIZED PROTEIN C17ORF53 HOMOLOG |
| HS20493 | AMILORIDE-SENSITIVE SODIUM CHANNEL-RELATED |
| HS20494 | MEMBRANE-ASSOCIATED GUANYLATE KINASE MAGUK |
| HS20495 | HEART DEVELOPMENT PROTEIN WITH EGF-LIKE DOMAINS 1 |
| HS20496 | |
| HS20497 | |
| HS20498 | KRUEPPEL-LIKE TRANSCRIPTION FACTOR |
| HS20499 | INWARD RECTIFIER POTASSIUM CHANNEL |
| HS20500 | TRANSMEMBRANE PROTEIN 98 |
