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 |
|---|---|
| HS05751 | FORKHEAD BOX PROTEIN N1 |
| HS05752 | ACETYL-COA CARBOXYLASE, ISOFORM A |
| HS05753 | DNA POLYMERASE EPSILON CATALYTIC SUBUNIT A |
| HS05754 | P2X PURINOCEPTOR |
| HS05755 | PESCADILLO - RELATED |
| HS05756 | GALACTOSE-3-O-SULFOTRANSFERASE |
| HS05757 | LEUCINE-ZIPPER-LIKE TRANSCRIPTIONAL REGULATOR 1 |
| HS05758 | CLAUDIN |
| HS05759 | APOPTOSIS-INDUCING FACTOR 1 |
| HS05760 | TRANSMEMBRANE GTPASE FZO1 |
| HS05761 | SOLUTE CARRIER FAMILY 2 |
| HS05762 | RNA-BINDING MOTIF PROTEIN 14B |
| HS05763 | PHOSPHOLIPASE B-RELATED |
| HS05764 | TRANSMEMBRANE PROTEIN 248-LIKE |
| HS05765 | ZINC FINGER CW-TYPE COILED-COIL DOMAIN PROTEIN 1 |
| HS05766 | ACYL-COA DEHYDROGENASE |
| HS05767 | NA+/CA2+ K+ INDEPENDENT EXCHANGER |
| HS05768 | |
| HS05769 | TWO PORE CALCIUM CHANNEL PROTEIN 1 |
| HS05770 | IQ DOMAIN-CONTAINING PROTEIN D |
| HS05771 | UNCHARACTERIZED |
| HS05772 | SI:CH211-196P9.1-RELATED |
| HS05773 | T-BOX PROTEIN-RELATED |
| HS05774 | TANDEM PH DOMAIN CONTAINING PROTEIN |
| HS05775 | TRANSFORMING ACIDIC COILED-COIL CONTAINING PROTEIN 1/2 |
| HS05776 | PA-PL1 PHOSPHOLIPASE FAMILY |
| HS05777 | EUKARYOTIC TRANSLATION INITIATION FACTOR 3 SUBUNIT EIF-3 |
| HS05778 | SRR1-LIKE PROTEIN |
| HS05779 | TUFTELIN-INTERACTING PROTEIN 11-RELATED |
| HS05780 | FMS INTERACTING PROTEIN |
| HS05781 | NEUROFILAMENT TRIPLET H PROTEIN |
| HS05782 | FANCONI ANEMIA GROUP G PROTEIN FAMILY MEMBER |
| HS05783 | ECTOPIC P GRANULES PROTEIN 5 HOMOLOG |
| HS05784 | AAA-FAMILY ATPASE |
| HS05785 | SER/THR-PROTEIN KINASE RIO2 |
| HS05786 | PROTEASE M1 ZINC METALLOPROTEASE |
| HS05787 | RGM DOMAIN FAMILY MEMBER DRAG-1 |
| HS05788 | PROTEASE M1 ZINC METALLOPROTEASE |
| HS05789 | UREA TRANSPORTER |
| HS05790 | |
| HS05791 | HISTONE-LYSINE N-METHYLTRANSFERASE ASH1 |
| HS05792 | CELL DIVISION PROTEIN KINASE |
| HS05793 | SERINE INCORPORATOR |
| HS05794 | THROMBOSPONDIN |
| HS05795 | METAXIN RELATED |
| HS05796 | E3 UBIQUITIN-PROTEIN LIGASE TRIM36-RELATED |
| HS05797 | E3 UBIQUITIN-PROTEIN LIGASE TRIM36-RELATED |
| HS05798 | POLY A POLYMERASE CID PAP -RELATED |
| HS05799 | HOMER |
| HS05800 | CENTROMERE PROTEIN H |
