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 |
|---|---|
| HS17951 | ENDOGLIN/TGF-BETA RECEPTOR TYPE III |
| HS17952 | |
| HS17953 | GENE, 32742-RELATED-RELATED |
| HS17954 | GENE, 32742-RELATED-RELATED |
| HS17955 | NG5 |
| HS17956 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS17957 | ANKYRIN REPEAT PROTEIN |
| HS17958 | ADRENERGIC RECEPTOR-RELATED G-PROTEIN COUPLED RECEPTOR |
| HS17959 | SODIUM CHANNEL SUBUNIT BETA-1 AND 3 |
| HS17960 | GENE, 32742-RELATED-RELATED |
| HS17961 | |
| HS17962 | HEPACAM FAMILY MEMBER 2-RELATED |
| HS17963 | CYCLIC NUCLEOTIDE PHOSPHODIESTERASE |
| HS17964 | OUT AT FIRST |
| HS17965 | TRANSMEMBRANE PROTEIN 136 |
| HS17966 | RHO GUANINE NUCLEOTIDE EXCHANGE FACTOR 2, ISOFORM D |
| HS17967 | |
| HS17968 | IONOTROPIC GLUTAMATE RECEPTOR |
| HS17969 | COILED-COIL DOMAIN-CONTAINING PROTEIN 153 |
| HS17970 | CBL |
| HS17971 | IG-LIKE DOMAIN-CONTAINING PROTEIN |
| HS17972 | E3 UBIQUITIN-PROTEIN LIGASE RNF26 |
| HS17973 | EMILIN ELASTIN MICROFIBRIL INTERFACE-LOCATED PROTEIN ELASTIN MICROFIBRIL INTERFACER |
| HS17974 | |
| HS17975 | HISTONE-LYSINE-N-METHYLTRANSFERASE 2 KMT2 FAMILY MEMBER |
| HS17976 | UBIQUITINATION FACTOR E4 |
| HS17977 | BICD FAMILY-LIKE CARGO ADAPTER |
| HS17978 | PHOSPHOSERINE PHOSPHATASE |
| HS17979 | FAM98 |
| HS17980 | COILED-COIL-HELIX-COILED-COIL-HELIX DOMAIN CONTAINING 2/NUR77 |
| HS17981 | SERINE/THREONINE-PROTEIN KINASE |
| HS17982 | NIPSNAP-RELATED |
| HS17983 | ELASTIN |
| HS17984 | |
| HS17985 | LIM DOMAIN KINASE 1 |
| HS17986 | SEPTIN |
| HS17987 | MAX DIMERIZATION, MAD |
| HS17988 | SAM-DEPENDENT METHYLTRANSFERASE |
| HS17989 | |
| HS17990 | WD REPEAT-CONTAINING PROTEIN POP1 |
| HS17991 | EUKARYOTIC TRANSLATION INITIATION FACTOR 3 SUBUNIT EIF-3 |
| HS17992 | COILED-COIL DOMAIN-CONTAINING 74A |
| HS17993 | CT120 PROTEIN |
| HS17994 | APOPTOSIS-INDUCING FACTOR 1 |
| HS17995 | ARSENITE METHYLTRANSFERASE |
| HS17996 | PRE-MRNA SPLICING FACTOR PRP8 |
| HS17997 | |
| HS17998 | ZINC FINGER PROTEIN DZIP1 |
| HS17999 | SCAVENGER RECEPTOR CLASS F |
| HS18000 | HEMOPEXIN DOMAIN-CONTAINING PROTEIN |
