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 |
|---|---|
| HS11851 | MALE-SPECIFIC LETHAL-1 PROTEIN |
| HS11852 | CHARGED MULTIVESICULAR BODY PROTEIN |
| HS11853 | RRNA METHYLTRANSFERASE 1, MITOCHONDRIAL |
| HS11854 | FIBROSIN FAMILY MEMBER |
| HS11855 | HELICASE SRCAP-RELATED |
| HS11856 | |
| HS11857 | SYNTAXIN |
| HS11858 | 3BP-1 RELATED RHOGAP |
| HS11859 | TESTIS-EXPRESSED PROTEIN 47 |
| HS11860 | NUCLEAR DISTRIBUTION PROTEIN NUDE HOMOLOG 1 |
| HS11861 | ARMADILLO REPEAT-CONTAINING PROTEIN 7 |
| HS11862 | ACYL-COA SYNTHETASE |
| HS11863 | ANTIGEN BSP, PUTATIVE-RELATED |
| HS11864 | BETA-SITE APP-CLEAVING ENZYME, ISOFORM A-RELATED |
| HS11865 | UNCHARACTERIZED |
| HS11866 | SPERMATOGENESIS-ASSOCIATED PROTEIN 20 |
| HS11867 | VOLTAGE-GATED CATION CHANNEL CALCIUM AND SODIUM |
| HS11868 | G-PROTEIN COUPLED RECEPTOR |
| HS11869 | G-PROTEIN COUPLED RECEPTOR |
| HS11870 | PROLYL HYDROXYLASE-RELATED |
| HS11871 | UNCHARACTERIZED |
| HS11872 | CYTOCHROME B-245 CHAPERONE 1 |
| HS11873 | NITRATE, FORMATE, IRON DEHYDROGENASE |
| HS11874 | |
| HS11875 | |
| HS11876 | |
| HS11877 | FAD NADPH DEHYDROGENASE/OXIDOREDUCTASE |
| HS11878 | PHOSPHATIDYLETHANOLAMINE-BINDING PROTEIN |
| HS11879 | B-BOX DOMAIN CONTAINING |
| HS11880 | WW DOMAIN BINDING PROTEIN 2, ISOFORM E |
| HS11881 | UNC-13-4A, ISOFORM B |
| HS11882 | UNKEMPT FAMILY MEMBER |
| HS11883 | HISTONE H3 |
| HS11884 | FYVE AND COILED-COIL DOMAIN-CONTAINING PROTEIN 1 |
| HS11885 | E3 UBIQUITIN-PROTEIN LIGASE TRIM |
| HS11886 | INTEGRIN BETA SUBUNIT |
| HS11887 | TRANSCRIPTIONAL REGULATOR PROTEIN HCNGP |
| HS11888 | CENTROCORTIN FAMILY MEMBER |
| HS11889 | PEPTIDE CHAIN RELEASE FACTOR |
| HS11890 | DIACYLGLYCEROL LIPASE HOMOLOG-RELATED |
| HS11891 | JNK/SAPK-ASSOCIATED PROTEIN |
| HS11892 | TRANSDUCER OF ERBB2 TOB |
| HS11893 | ACP24A4-RELATED |
| HS11894 | ATP-BINDING CASSETTE SUB-FAMILY C |
| HS11895 | DILUTE DOMAIN-CONTAINING PROTEIN YPR089W |
| HS11896 | CHECKPOINT SUPPRESSOR 1-LIKE, ISOFORM A-RELATED |
| HS11897 | ZINC FINGER PROTEIN 200 |
| HS11898 | DREV PROTEIN |
| HS11899 | ER LUMEN PROTEIN RETAINING RECEPTOR |
| HS11900 | ACROSIN-RELATED |
