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 |
|---|---|
| HS20701 | UNCHARACTERIZED |
| HS20702 | UNCHARACTERIZED |
| HS20703 | PHOSPHATIDYLINOSITOL 3-KINASE REGULATORY SUBUNIT |
| HS20704 | PHOSPHATIDYLINOSITOL 3-KINASE REGULATORY SUBUNIT |
| HS20705 | NETRIN/LAMININ-RELATED |
| HS20706 | UBIQUITIN CARBOXYL-TERMINAL HYDROLASE |
| HS20707 | PROTEIN ENHANCER OF SEVENLESS 2B |
| HS20708 | NUCLEOSOME-REMODELING FACTOR SUBUNIT BPTF |
| HS20709 | HECT DOMAIN UBIQUITIN-PROTEIN LIGASE |
| HS20710 | IMPORTIN ALPHA |
| HS20711 | ATP-DEPENDENT RNA HELICASE DBP3 |
| HS20712 | ENVOPLAKIN |
| HS20713 | SEROTONIN N-ACETYLTRANSFERASE |
| HS20714 | MYOSIN HEAVY CHAIN, NON-MUSCLE |
| HS20715 | ATP-DEPENDENT RNA HELICASE RHLE-RELATED |
| HS20716 | WW DOMAIN-BINDING PROTEIN 11 |
| HS20717 | PLECKSTRIN HOMOLOGY DOMAIN-CONTAINING FAMILY F MEMBER 2-RELATED |
| HS20718 | UBIQUITIN CONJUGATING ENZYME 7 INTERACTING PROTEIN-RELATED |
| HS20719 | FERRITIN |
| HS20720 | FERRITIN |
| HS20721 | FERRITIN |
| HS20722 | |
| HS20723 | CLASS II AMINOTRANSFERASE/8-AMINO-7-OXONONANOATE SYNTHASE |
| HS20724 | DNA REPLICATION LICENSING FACTOR MCM FAMILY MEMBER |
| HS20725 | HEME OXYGENASE |
| HS20726 | FLAVIN-BINDING MONOOXYGENASE-LIKE PROTEIN (AFU_ORTHOLOGUE AFUA_4G09220) |
| HS20727 | ANKYRIN REPEAT DOMAIN-CONTAINING PROTEIN 61 |
| HS20728 | HMG DOMAIN-CONTAINING PROTEIN 4 |
| HS20729 | GTPASE, IMAP FAMILY MEMBER-RELATED |
| HS20730 | FORKHEAD BOX PROTEIN |
| HS20731 | FORKHEAD BOX PROTEIN |
| HS20732 | G-PROTEIN COUPLED RECEPTOR |
| HS20733 | UNCHARACTERIZED |
| HS20734 | |
| HS20735 | ZINC FINGER, ZZ TYPE |
| HS20736 | LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED |
| HS20737 | SNF2/RAD54 HELICASE FAMILY |
| HS20738 | CYSTEINE PROTEASE ATG4 |
| HS20739 | SERINE/THREONINE-PROTEIN KINASE |
| HS20740 | FOLATE RECEPTOR |
| HS20741 | |
| HS20742 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS20743 | JUN TRANSCRIPTION FACTOR-RELATED |
| HS20744 | HOOK PROTEINS |
| HS20745 | ZINC FINGER PROTEIN |
| HS20746 | SYNAPTOTAGMIN |
| HS20747 | TROPONIN T |
| HS20748 | PEPTIDOGLYCAN RECOGNITION PROTEIN |
| HS20749 | 41-2 PROTEIN ANTIGEN-RELATED |
| HS20750 | MUCOLIPIN |
