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 |
|---|---|
| HS04451 | MITOCHONDRIA-EATING PROTEIN-RELATED |
| HS04452 | SARCOGLYCANS |
| HS04453 | ANTIGEN BSP, PUTATIVE-RELATED |
| HS04454 | RP42 RELATED |
| HS04455 | OVARIAN CARCINOMA IMMUNOREACTIVE ANTIGEN |
| HS04456 | FURRY-RELATED |
| HS04457 | ZYGOTE ARREST PROTEIN 1-LIKE ISOFORM X1 |
| HS04458 | SODIUM-BILE ACID COTRANSPORTER |
| HS04459 | |
| HS04460 | UNCHARACTERIZED |
| HS04461 | ANAPHASE PROMOTING COMPLEX SUBUNIT 4 APC4 |
| HS04462 | IMMUNOGLOBULIN |
| HS04463 | SHORT-CHAIN DEHYDROGENASES/REDUCTASES FAMILY MEMBER |
| HS04464 | SH3 DOMAIN-CONTAINING |
| HS04465 | CAMK FAMILY PROTEIN KINASE |
| HS04466 | YALI0A06105P |
| HS04467 | UNCHARACTERIZED |
| HS04468 | CENTROSOMAL PROTEIN-RELATED |
| HS04469 | EMILIN ELASTIN MICROFIBRIL INTERFACE-LOCATED PROTEIN ELASTIN MICROFIBRIL INTERFACER |
| HS04470 | CYTOPLASMIC POLYADENYLATION ELEMENT BINDING PROTEIN CPEB |
| HS04471 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS04472 | PR DOMAIN ZINC FINGER PROTEIN |
| HS04473 | NEURON-DERIVED NEUROTROPHIC FACTOR |
| HS04474 | SOLUTE CARRIER FAMILY 34 SODIUM PHOSPHATE , MEMBER 2-RELATED |
| HS04475 | CADHERIN-23 |
| HS04476 | CADHERIN-23 |
| HS04477 | |
| HS04478 | COLLECTRIN |
| HS04479 | EH DOMAIN |
| HS04480 | NANCE-HORAN SYNDROME PROTEIN |
| HS04481 | NANCE-HORAN SYNDROME PROTEIN |
| HS04482 | RETINOIC ACID-INDUCED PROTEIN 2 |
| HS04483 | POLYCOMB GROUP PROTEIN |
| HS04484 | CELL DIVISION PROTEIN KINASE |
| HS04485 | |
| HS04486 | MULTICOPPER OXIDASE-RELATED |
| HS04487 | |
| HS04488 | APICAL PROTEIN/SHROOM-RELATED |
| HS04489 | CLAUDIN |
| HS04490 | CLAUDIN |
| HS04491 | BOMB/KIRA PROTEINS |
| HS04492 | ADAPTER PROTEIN CIKS |
| HS04493 | CHROMODOMAIN-HELICASE-DNA-BINDING PROTEIN 1-LIKE |
| HS04494 | UNCHARACTERIZED |
| HS04495 | EPIDIDYMAL MEMBRANE PROTEIN E9-RELATED |
| HS04496 | MITOCHONDRIAL IMPORT RECEPTOR SUBUNIT TOM70 |
| HS04497 | UNCHARACTERIZED |
| HS04498 | NITRILASE-RELATED |
| HS04499 | BUTYROPHILIN |
| HS04500 | GTP-BINDING PROTEIN HFLX |
