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 |
|---|---|
| HS21551 | HISTONE PARYLATION FACTOR 1 |
| HS21552 | PROTEIN PHOSPHATASE PP2A REGULATORY SUBUNIT B |
| HS21553 | WOLFRAMIN |
| HS21554 | HYDRANTOINASE/DIHYDROPYRIMIDINASE FAMILY MEMBER |
| HS21555 | CADHERIN-87A |
| HS21556 | |
| HS21557 | STROMAL INTERACTION MOLECULE HOMOLOG |
| HS21558 | RECOMBINING BINDING PROTEIN SUPPRESSOR OF HAIRLESS |
| HS21559 | LD22376P |
| HS21560 | DYNACTIN 6 |
| HS21561 | TRANSCRIPTION INITIATION FACTOR IIE, BETA SUBUNIT |
| HS21562 | CLCA DOMAIN-CONTAINING PROTEIN |
| HS21563 | ADHESION G-PROTEIN COUPLED RECEPTOR |
| HS21564 | MULTIPLE PDZ DOMAIN PROTEIN |
| HS21565 | TYROSINASE FAMILY MEMBER |
| HS21566 | |
| HS21567 | PROTEIN SIDEKICK |
| HS21568 | CYTOKINE RECEPTOR |
| HS21569 | LYSINE-SPECIFIC DEMETHYLASE |
| HS21570 | TRANSLATIONAL ACTIVATOR GCN1-RELATED |
| HS21571 | STRUCTURAL MAINTENANCE OF CHROMOSOMES PROTEIN 3 |
| HS21572 | |
| HS21573 | ENDONUCLEASE DOMAIN-CONTAINING 1 PROTEIN ENDOD1 |
| HS21574 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS21575 | CIRCADIAN LOCOMOTER OUTPUT CYCLES PROTEIN KAPUT |
| HS21576 | |
| HS21577 | TYROSINE-PROTEIN KINASE RECEPTOR |
| HS21578 | FIP1-LIKE 1 PROTEIN |
| HS21579 | ALPHA-1-ACID GLYCOPROTEIN |
| HS21580 | CYSTEINE-RICH HYDROPHOBIC DOMAIN PROTEIN BRAIN X-LINKED PROTEIN |
| HS21581 | RHOMBOID-RELATED PROTEIN |
| HS21582 | OVARIAN CARCINOMA IMMUNOREACTIVE ANTIGEN |
| HS21583 | SOLUTE CARRIER FAMILY 34 SODIUM PHOSPHATE , MEMBER 2-RELATED |
| HS21584 | |
| HS21585 | |
| HS21586 | ATAXIN 2-BINDING PROTEIN 1-RELATED |
| HS21587 | ZONA PELLUCIDA SPERM-BINDING PROTEIN |
| HS21588 | EPITHELIAL MEMBRANE PROTEIN-RELATED |
| HS21589 | FACTOR VIII-ASSOCIATED GENE 1 |
| HS21590 | NFAT ACTIVATION MOLECULE 1 |
| HS21591 | HEME-BINDING PROTEIN 1 |
| HS21592 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS21593 | YALI0A06105P |
| HS21594 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS21595 | PROTEIN CBG26694 |
| HS21596 | ACTIVATING TRANSCRIPTION FACTOR 7 INTERACTING PROTEIN |
| HS21597 | SEPTIN |
| HS21598 | MONOACYLGLYCEROL LIPASE |
| HS21599 | MONOACYLGLYCEROL LIPASE |
| HS21600 | MYOGLOBIN |
