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 |
|---|---|
| HS20851 | ALDEHYDE DEHYDROGENASE |
| HS20852 | SERINE/THREONINE-PROTEIN PHOSPHATASE PP2A-RELATED |
| HS20853 | BATTENIN |
| HS20854 | TRNA-DIHYDROURIDINE SYNTHASE |
| HS20855 | MONOCARBOXYLATE TRANSPORTER |
| HS20856 | CASEIN KINASE-RELATED |
| HS20857 | ENDO BETA N-ACETYLGLUCOSAMINIDASE |
| HS20858 | SERINE PROTEASE FAMILY S10 SERINE CARBOXYPEPTIDASE |
| HS20859 | COILIN P80 |
| HS20860 | RAB11-FAMILY INTERACTING PROTEIN |
| HS20861 | ZINC FINGER PROTEIN |
| HS20862 | KH DOMAIN CONTAINING RNA BINDING PROTEIN |
| HS20863 | HEAT SHOCK PROTEINP-12.2-RELATED |
| HS20864 | MHC CLASS I NK CELL RECEPTOR |
| HS20865 | NUCLEAR HORMONE RECEPTOR |
| HS20866 | ROLLING PEBBLES, ISOFORM B |
| HS20867 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
| HS20868 | CYTOCHROME B561-RELATED |
| HS20869 | HISTONE DEACETYLASE 9-RELATED |
| HS20870 | NON-LTR RETROLELEMENT REVERSE TRANSCRIPTASE-LIKE PROTEIN-RELATED |
| HS20871 | |
| HS20872 | PEROXISOME ASSEMBLY PROTEIN 12 PEROXIN-12 |
| HS20873 | PEROXISOME ASSEMBLY PROTEIN 12 PEROXIN-12 |
| HS20874 | SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN |
| HS20875 | |
| HS20876 | COLLAGEN ALPHA |
| HS20877 | METHYLTRANSFERASE-RELATED |
| HS20878 | |
| HS20879 | SI:CH73-248E21.1 |
| HS20880 | ENOS INTERACTING PROTEIN |
| HS20881 | RETICULOCALBIN |
| HS20882 | AMINOTRANSFERASE |
| HS20883 | CAMP-DEPENDENT PROTEIN KINASE REGULATORY CHAIN |
| HS20884 | ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 1 |
| HS20885 | MONOCARBOXYLATE TRANSPORTER |
| HS20886 | WD-REPEAT PROTEIN INTERACTING WITH PHOSPHOINOSIDES WIPI -RELATED |
| HS20887 | GTP-BINDING PROTEIN ALPHA SUBUNIT |
| HS20888 | CONSERVED OLIGOMERIC GOLGI COMPLEX SUBUNIT 1 |
| HS20889 | |
| HS20890 | |
| HS20891 | LEUCINE ZIPPER CONTAINING TRANSCRIPTION FACTOR LZF1 |
| HS20892 | OXIDOREDUCTASE GLYR1-RELATED |
| HS20893 | ENVOPLAKIN |
| HS20894 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS20895 | PROTEIN CBG26694 |
| HS20896 | |
| HS20897 | FRUCTOSE-BISPHOSPHATE ALDOLASE |
| HS20898 | |
| HS20899 | 26S PROTESOME SUBUNIT 6 |
| HS20900 | SOLUTE CARRIER FAMILY 25 |
