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 |
|---|---|
| HS03651 | MYOSIN |
| HS03652 | |
| HS03653 | ADAMTS A DISINTEGRIN AND METALLOPROTEASE WITH THROMBOSPONDIN MOTIFS PROTEASE |
| HS03654 | |
| HS03655 | TYROSINE-PROTEIN KINASE |
| HS03656 | MPS ONE BINDER KINASE ACTIVATOR-LIKE MOB |
| HS03657 | SERINE/THREONINE-PROTEIN KINASE |
| HS03658 | RNA EXONUCLEASE REXO1 / RECO3 FAMILY MEMBER-RELATED |
| HS03659 | DIENCEPHALON/MESENCEPHALON HOMEOBOX PROTEIN 1 |
| HS03660 | CASEIN KINASE-RELATED |
| HS03661 | ENDONUCLEASE-RELATED |
| HS03662 | OCCLUDIN AND RNA POLYMERASE II ELONGATION FACTOR ELL |
| HS03663 | NUCLEAR HORMONE RECEPTOR |
| HS03664 | COLORECTAL MUTANT CANCER PROTEIN MCC PROTEIN -RELATED |
| HS03665 | UNCHARACTERIZED |
| HS03666 | PLASMALEMMA VESICLE-ASSOCIATED PROTEIN |
| HS03667 | TRNA MODIFICATION GTPASE GTPBP3 |
| HS03668 | ANOCTAMIN |
| HS03669 | DET1- AND DDB1-ASSOCIATED PROTEIN 1 |
| HS03670 | RE40534P-RELATED |
| HS03671 | RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE |
| HS03672 | |
| HS03673 | MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE 20-RELATED |
| HS03674 | LIM/HOMEOBOX PROTEIN LHX |
| HS03675 | |
| HS03676 | |
| HS03677 | DENN DOMAIN-CONTAINING |
| HS03678 | CRUMBS FAMILY MEMBER |
| HS03679 | UNCHARACTERIZED |
| HS03680 | BAND 7 PROTEIN-RELATED |
| HS03681 | TUDOR DOMAIN CONTAINING PROTEIN |
| HS03682 | SODIUM/DICARBOXYLATE SYMPORTER-RELATED |
| HS03683 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS03684 | PROTEIN FAM163A |
| HS03685 | RAB GTPASE-ACTIVATING PROTEIN 1-LIKE |
| HS03686 | OPSIN |
| HS03687 | INTERFERON-INDUCED PROTEIN 44 |
| HS03688 | ARRESTIN DOMAIN CONTAINING PROTEIN |
| HS03689 | UBIQUITIN |
| HS03690 | HOMER |
| HS03691 | ATP-DEPENDENT RNA HELICASE RHLE-RELATED |
| HS03692 | DNA2/NAM7 HELICASE FAMILY |
| HS03693 | PROTEASE FAMILY C15 PYROGLUTAMYL-PEPTIDASE I-RELATED |
| HS03694 | SMALL NUCLEAR RIBONUCLEOPROTEIN SM |
| HS03695 | JUN TRANSCRIPTION FACTOR-RELATED |
| HS03696 | LD44762P |
| HS03697 | PEROXISOMAL MEMBRANE PROTEIN 2, PXMP2 MPV17 |
| HS03698 | PEROXISOMAL MEMBRANE PROTEIN 2, PXMP2 MPV17 |
| HS03699 | |
| HS03700 | CYCLIC NUCLEOTIDE PHOSPHODIESTERASE |
