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 |
|---|---|
| HS06851 | |
| HS06852 | TUMOR NECROSIS FACTOR FAMILY MEMBER |
| HS06853 | NETRIN/LAMININ-RELATED |
| HS06854 | SERINE/THREONINE-PROTEIN PHOSPHATASE PP2A-RELATED |
| HS06855 | GRIP AND COILED-COIL DOMAIN-CONTAINING PROTEIN 1 |
| HS06856 | 60S RIBOSOMAL PROTEIN L35 |
| HS06857 | |
| HS06858 | OLFACTOMEDIN-RELATED |
| HS06859 | KNIRPS-RELATED PROTEIN-RELATED |
| HS06860 | NUCLEAR RECEPTOR SUBFAMILY 5 GROUP A |
| HS06861 | ADHESION G-PROTEIN COUPLED RECEPTOR |
| HS06862 | LIM/HOMEOBOX PROTEIN LHX |
| HS06863 | |
| HS06864 | PROTEIN CBG11839-RELATED |
| HS06865 | CRUMBS FAMILY MEMBER |
| HS06866 | TUBULIN |
| HS06867 | FK506-BINDING PROTEIN 15 |
| HS06868 | FIBROBLAST GROWTH FACTOR |
| HS06869 | ADENOSINE/GUANOSINE DIPHOSPHATASE |
| HS06870 | ARRESTIN DOMAIN CONTAINING PROTEIN |
| HS06871 | NEGATIVE ELONGATION FACTOR COMPLEX MEMBER B |
| HS06872 | G9A, ISOFORM B |
| HS06873 | MANNOSYL-OLIGOSACCHARIDE ALPHA-1,2-MANNOSIDASE-RELATED |
| HS06874 | |
| HS06875 | PROTEASE S28 PRO-X CARBOXYPEPTIDASE-RELATED |
| HS06876 | NEUTROPHIL CYTOSOLIC FACTOR 2, NEUTROPHIL NADPH OXIDASE FACTOR 2 |
| HS06877 | NIBAN FAMILY MEMBER |
| HS06878 | RNA POLYMERASE II TRANSCRIPTIONAL COACTIVATOR |
| HS06879 | NATRIURETIC PEPTIDE RECEPTOR 3-RELATED |
| HS06880 | IL16-RELATED |
| HS06881 | IL16-RELATED |
| HS06882 | TRANS-GOLGI PROTEIN GMX33 |
| HS06883 | DELTEX-RELATED |
| HS06884 | |
| HS06885 | INSULIN GENE ENHANCER PROTEIN |
| HS06886 | SI:CH211-196P9.1-RELATED |
| HS06887 | METASTASIS-ASSOCIATED PROTEIN AND MESODERM INDUCTION EARLY RESPONSE PROTEIN |
| HS06888 | SERINE/THREONINE-PROTEIN KINASE PLK |
| HS06889 | LD44762P |
| HS06890 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS06891 | ODD-SKIPPED - RELATED |
| HS06892 | KRUEPPEL-LIKE TRANSCRIPTION FACTOR |
| HS06893 | KRUEPPEL-LIKE TRANSCRIPTION FACTOR |
| HS06894 | ZINC FINGER PROTEIN ZIC AND GLI |
| HS06895 | B-BOX DOMAIN CONTAINING |
| HS06896 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS06897 | B-BOX DOMAIN CONTAINING |
| HS06898 | |
| HS06899 | KRUEPPEL-LIKE TRANSCRIPTION FACTOR |
| HS06900 | TRANSPOSABLE ELEMENT-RELATED |
