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 |
|---|---|
| HS20651 | GALECTIN |
| HS20652 | PHOSPHOLIPASE B-RELATED |
| HS20653 | ARFAPTIN-RELATED |
| HS20654 | GTP-BINDING |
| HS20655 | ZINC KNUCKLE DOMAINCONTAINING PROTEIN-RELATED |
| HS20656 | GTP-BINDING |
| HS20657 | CDC42 EFFECTOR PROTEIN BORG |
| HS20658 | CASPASE RECRUITMENT DOMAIN FAMILY |
| HS20659 | TRINUCLEOTIDE REPEAT-CONTAINING GENE 6 |
| HS20660 | TRINUCLEOTIDE REPEAT-CONTAINING GENE 6 |
| HS20661 | CASEIN KINASE-RELATED |
| HS20662 | ORGANIC SOLUTE TRANSPORTER-RELATED |
| HS20663 | GOLGI-LOCALIZED, GAMMA-ADAPTIN EAR CONTAINING, ARF BINDING PROTEIN |
| HS20664 | |
| HS20665 | DNA-DIRECTED RNA POLYMERASE SUBUNIT K |
| HS20666 | SOX100B |
| HS20667 | INWARD RECTIFIER POTASSIUM CHANNEL |
| HS20668 | ER LUMEN PROTEIN RETAINING RECEPTOR |
| HS20669 | GTPASE, IMAP FAMILY MEMBER-RELATED |
| HS20670 | UNCHARACTERIZED |
| HS20671 | BCL2 INTERACTING MEDIATOR OF CELL DEATH |
| HS20672 | |
| HS20673 | GTPASE, IMAP FAMILY MEMBER-RELATED |
| HS20674 | |
| HS20675 | STEROL REGULATORY ELEMENT-BINDING PROTEIN |
| HS20676 | NUCLEOLAR PROTEIN 12 |
| HS20677 | PLECKSTRIN HOMOLOGY PH DOMAIN-CONTAINING PROTEIN |
| HS20678 | NADH-UBIQUINONE OXIDOREDUCTASE B14 SUBUNIT |
| HS20679 | - |
| HS20680 | RNA AND EXPORT FACTOR BINDING PROTEIN |
| HS20681 | RIBOSOMAL RNA PROCESSING PROTEIN 7-RELATED |
| HS20682 | ZONA PELLUCIDA SPERM-BINDING PROTEIN |
| HS20683 | WW DOMAIN BINDING PROTEIN 2, ISOFORM E |
| HS20684 | HEME-BINDING PROTEIN-RELATED |
| HS20685 | PROTEIN FMC1 HOMOLOG |
| HS20686 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS20687 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS20688 | RETINOIC ACID INDUCED 1/TRANSCRIPTION FACTOR 20 |
| HS20689 | |
| HS20690 | |
| HS20691 | EPITHELIAL MEMBRANE PROTEIN-RELATED |
| HS20692 | ZONA PELLUCIDA SPERM-BINDING PROTEIN |
| HS20693 | TETRASPANIN |
| HS20694 | ENZYMATIC POLYPROTEIN-RELATED |
| HS20695 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS20696 | TETRASPANIN |
| HS20697 | ATAXIN 2-BINDING PROTEIN 1-RELATED |
| HS20698 | G PROTEIN COUPLED RECEPTOR, CLASS C, GROUP 5 |
| HS20699 | MATRIX GLA PROTEIN |
| HS20700 | VHS DOMAIN CONTAINING PROTEIN FAMILY |
