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 |
|---|---|
| HS10601 | |
| HS10602 | MYOSIN |
| HS10603 | |
| HS10604 | ADRENERGIC RECEPTOR-RELATED G-PROTEIN COUPLED RECEPTOR |
| HS10605 | 5'-NUCLEOTIDASE-RELATED |
| HS10606 | SORTING NEXIN |
| HS10607 | HETEROGENEOUS NUCLEAR RIBONUCLEOPROTEIN |
| HS10608 | PRE-MRNA SPLICING FACTOR |
| HS10609 | CILIA- AND FLAGELLA-ASSOCIATED PROTEIN 61 |
| HS10610 | CILIA- AND FLAGELLA-ASSOCIATED PROTEIN 61 |
| HS10611 | INSULINOMA-ASSOCIATED 1 |
| HS10612 | PROTEIN, PUTATIVE-RELATED |
| HS10613 | 5'->3' EXORIBONUCLEASE |
| HS10614 | HOMEOBOX PROTEIN NKX |
| HS10615 | PAIRED BOX PROTEIN PAX-6-RELATED-RELATED |
| HS10616 | FORKHEAD BOX PROTEIN |
| HS10617 | |
| HS10618 | CCAAT-BINDING FACTOR-RELATED |
| HS10619 | UNCHARACTERIZED |
| HS10620 | PROTEIN KINASE C, MU |
| HS10621 | CONNECTOR ENCHANCER OF KINASE SUPPRESSOR OF RAS |
| HS10622 | 40S RIBOSOMAL PROTEIN S7 |
| HS10623 | RIBONUCLEASE H1 |
| HS10624 | MYELIN TRANSCRIPTION FACTOR 1-RELATED |
| HS10625 | TRANSCRIPTION FACTOR E2F |
| HS10626 | SCHNURRI, ISOFORM F |
| HS10627 | ANDROGEN-INDUCED PROTEIN 1-RELATED |
| HS10628 | CYTOSINE DEAMINASE FAMILY MEMBER |
| HS10629 | PEROXISOMAL BIOGENESIS FACTOR 3 |
| HS10630 | FOS TRANSCRIPTION FACTOR-RELATED |
| HS10631 | KINETOCHORE-ASSOCIATED PROTEIN NSL1 HOMOLOG |
| HS10632 | MAJOR FACILITATOR SUPERFAMILY PROTEIN-RELATED |
| HS10633 | CYTOCHROME P450 508A4-RELATED |
| HS10634 | CYTOCHROME P450 508A4-RELATED |
| HS10635 | T-CELL SURFACE GLYCOPROTEIN CD4 |
| HS10636 | VASOHIBIN-1-LIKE ISOFORM X2 |
| HS10637 | |
| HS10638 | CARBON CATABOLITE REPRESSOR PROTEIN 4 |
| HS10639 | TRANSPOSASE-RELATED |
| HS10640 | - |
| HS10641 | AN1-TYPE ZINC FINGER PROTEIN |
| HS10642 | T-CELL SURFACE GLYCOPROTEIN CD4 |
| HS10643 | |
| HS10644 | PROLINE-RICH NUCLEAR RECEPTOR COACTIVATOR |
| HS10645 | CYSTEINE-RICH PROTEIN CRIP FAMILY MEMBER |
| HS10646 | FATTY ACID BINDING PROTEIN |
| HS10647 | SPHINGOMYELIN PHOSPHODIESTERASE |
| HS10648 | ALPHA-TOCOPHEROL TRANSFER PROTEIN-RELATED |
| HS10649 | TRIADIN |
| HS10650 | SI:CH211-245H14.1-RELATED |
