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 |
|---|---|
| HS14551 | ZINC KNUCKLE DOMAINCONTAINING PROTEIN-RELATED |
| HS14552 | |
| HS14553 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
| HS14554 | PHOSPHOFURIN ACIDIC CLUSTER SORTING PROTEIN |
| HS14555 | RIBOSOMAL PROTEIN L2 |
| HS14556 | KINESIN LIGHT CHAIN |
| HS14557 | SI:CH211-196P9.1-RELATED |
| HS14558 | CONTACTIN 5 |
| HS14559 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS14560 | SERUM RESPONSE FACTOR HOMOLOG |
| HS14561 | RAI16 PROTEIN-RELATED |
| HS14562 | ACTIN-BINDING LIM PROTEIN |
| HS14563 | B-BOX DOMAIN CONTAINING |
| HS14564 | TRYPSIN-RELATED |
| HS14565 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS14566 | PROTEIN MEMO1 |
| HS14567 | 3-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE |
| HS14568 | SYNDROMES PUTATIVE CHAPERONIN-RELATED |
| HS14569 | PROTEIN SLX4IP |
| HS14570 | PROTEIN SLX4IP |
| HS14571 | |
| HS14572 | BTB/POZ DOMAIN-CONTAINING |
| HS14573 | CLASS II AMINOTRANSFERASE/8-AMINO-7-OXONONANOATE SYNTHASE |
| HS14574 | ISTHMIN-2 |
| HS14575 | L-ASPARAGINASE |
| HS14576 | GANGLIOSIDE INDUCED DIFFERENTIATION ASSOCIATED PROTEIN 2-RELATED |
| HS14577 | AGAP008170-PA |
| HS14578 | HISTONE H3 |
| HS14579 | STAR-RELATED LIPID TRANSFER PROTEIN 9 |
| HS14580 | MAD2L1-BINDING PROTEIN |
| HS14581 | EPOXIDE HYDROLASE 1-RELATED |
| HS14582 | CYSTATIN |
| HS14583 | L-COA N-ACYLTRANSFERASE-RELATED |
| HS14584 | MITOCHONDRIAL GENOME MAINTENANCE EXONUCLEASE 1 |
| HS14585 | SORTING NEXIN FAMILY MEMBER |
| HS14586 | RIBOSOME BINDING PROTEIN-1 |
| HS14587 | COFILIN-RELATED |
| HS14588 | CALPAIN |
| HS14589 | CALPAIN |
| HS14590 | CALPAIN |
| HS14591 | 39S RIBOSOMAL PROTEIN L14, MITOCHONDRIAL |
| HS14592 | PROBABLE MEMBRANE PROTEIN DUF221-RELATED |
| HS14593 | |
| HS14594 | |
| HS14595 | SOLUTE CARRIER FAMILY 39 ZINC TRANSPORTER , MEMBER 9-RELATED |
| HS14596 | - |
| HS14597 | UNCHARACTERIZED |
| HS14598 | TRANSFORMING ACIDIC COILED-COIL CONTAINING PROTEIN 1/2 |
| HS14599 | CD59 GLYCOPROTEIN |
| HS14600 | PROPERDIN |
