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 |
|---|---|
| HS17351 | GALACTOSYLGALACTOSYLXYLOSYLPROTEIN 3-BETA-GLUCURONOSYLTRANSFERASE BETA-1,3-GLUCURONYLTRANSFERASE |
| HS17352 | BETA-GALACTOSIDASE RELATED |
| HS17353 | BETA-GALACTOSIDASE RELATED |
| HS17354 | THIAMINE PYROPHOSPHATE ENZYMES |
| HS17355 | PROTEIN FAM118B |
| HS17356 | SIGNAL RECOGNITION PARTICLE RECEPTOR SUBUNIT ALPHA |
| HS17357 | YALI0A06105P |
| HS17358 | SI:CH211-196P9.1-RELATED |
| HS17359 | SIALYLTRANSFERASE |
| HS17360 | INWARD RECTIFIER POTASSIUM CHANNEL |
| HS17361 | INWARD RECTIFIER POTASSIUM CHANNEL |
| HS17362 | ETS |
| HS17363 | ETS |
| HS17364 | SOMATOTROPIN,PROLACTIN |
| HS17365 | NEPHRIN |
| HS17366 | HOMEO BOX HB9 LIKE A-RELATED |
| HS17367 | RNA BINDING MOTIF RBM PROTEIN -RELATED |
| HS17368 | CXADR-LIKE MEMBRANE PROTEIN |
| HS17369 | |
| HS17370 | UNCHARACTERIZED |
| HS17371 | DAPPER-RELATED |
| HS17372 | CHEMOTACTIC RECEPTOR |
| HS17373 | PROTEIN LBH-RELATED |
| HS17374 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS17375 | SERINE/THREONINE-PROTEIN KINASE ATM |
| HS17376 | ACROSIN-RELATED |
| HS17377 | DNA-DIRECTED RNA POLYMERASE |
| HS17378 | PEPTIDOGLYCAN RECOGNITION PROTEIN |
| HS17379 | FORKHEAD BOX PROTEIN G1 |
| HS17380 | SPROUTY-RELATED, EVH1 DOMAIN-CONTAINING PROTEIN FAMILY MEMBER |
| HS17381 | CLATHRIN HEAVY CHAIN RELATED |
| HS17382 | NASOPHARYNGEAL EPITHELIUM SPECIFIC PROTEIN 1 |
| HS17383 | GLUCOSE-6-PHOSPHATE EXCHANGER SLC37A4 |
| HS17384 | TRAFFICKING PROTEIN PARTICLE COMPLEX SUBUNIT |
| HS17385 | 40S RIBOSOMAL PROTEIN S25 |
| HS17386 | SARCOGLYCAN |
| HS17387 | SACSIN |
| HS17388 | TNFR-CYS DOMAIN-CONTAINING PROTEIN |
| HS17389 | PROTEASE M3 THIMET OLIGOPEPTIDASE-RELATED |
| HS17390 | WD REPEAT DOMAIN 9 |
| HS17391 | |
| HS17392 | TAIL-ANCHORED PROTEIN INSERTION RECEPTOR WRB |
| HS17393 | C21ORF13-RELATED |
| HS17394 | SH3 DOMAIN-BINDING GLUTAMIC ACID-RICH-LIKE PROTEIN |
| HS17395 | IMMUNOGLOBULIN SUPERFAMILY MEMBER 5 |
| HS17396 | IG-LIKE DOMAIN-CONTAINING PROTEIN |
| HS17397 | BASIGIN RELATED |
| HS17398 | ASPARTYL PROTEASE-RELATED |
| HS17399 | |
| HS17400 | SI:CH211-196P9.1-RELATED |
