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 |
|---|---|
| HS18951 | CHONDROITIN SULFATE PROTEOGLYCAN 5 -RELATED |
| HS18952 | SWI/SNF COMPLEX-RELATED |
| HS18953 | FTP DOMAIN-CONTAINING PROTEIN |
| HS18954 | FTP DOMAIN-CONTAINING PROTEIN |
| HS18955 | DPY-19-LIKE 1, LIKE (H. SAPIENS) |
| HS18956 | T-BOX PROTEIN-RELATED |
| HS18957 | HOMOCYSTEINE-RESPONSIVE ENDOPLASMIC RETICULUM-RESIDENT UNIQUITIN-LIKE DOMAIN HERPUD PROTEIN FAMILY MEMBER |
| HS18958 | UNCHARACTERIZED |
| HS18959 | ANKYRIN REPEAT AND MYND DOMAIN-CONTAINING PROTEIN 2 |
| HS18960 | SCLEROSTIN-RELATED |
| HS18961 | D-RIBITOL-5-PHOSPHATE CYTIDYLYLTRANSFERASE |
| HS18962 | HOMEOBOX PROTEIN MOX |
| HS18963 | STEROL DESATURASE-RELATED PROTEIN |
| HS18964 | NEUREXOPHILIN |
| HS18965 | DIACYLGLYCEROL KINASE |
| HS18966 | ETS |
| HS18967 | ADP RIBOSYLATION FACTOR-RELATED |
| HS18968 | |
| HS18969 | |
| HS18970 | VOMERONASAL TYPE-1 RECEPTOR |
| HS18971 | EGF-LIKE-DOMAIN, MULTIPLE 7, 8 |
| HS18972 | EGF-LIKE-DOMAIN, MULTIPLE 7, 8 |
| HS18973 | TRANSMEMBRANE PROTEIN 106B |
| HS18974 | SPONDIN |
| HS18975 | ISLET CELL AUTOANTIGEN 1 |
| HS18976 | AGAP011572-PA |
| HS18977 | |
| HS18978 | |
| HS18979 | WD40 DOMAIN-CONTAINING PROTEIN MIO FAMILY MEMBER |
| HS18980 | SI:DKEY-256H2.1 |
| HS18981 | SEPTIN |
| HS18982 | NUCLEAR HORMONE RECEPTOR |
| HS18983 | |
| HS18984 | NUCLEAR HORMONE RECEPTOR |
| HS18985 | UBIQUITIN-CONJUGATING ENZYME E2 |
| HS18986 | UBIQUITIN-CONJUGATING ENZYME E2 |
| HS18987 | DOUBLE-STRANDED RNA-BINDING ZINC FINGER PROTEIN |
| HS18988 | - |
| HS18989 | DNA-BINDING PROTEIN SATB FAMILY MEMBER |
| HS18990 | |
| HS18991 | PHOSPHOINOSITIDE-SPECIFIC PHOSPHOLIPASE C FAMILY PROTEIN |
| HS18992 | CYSTEINE-RICH SECRETORY PROTEIN-RELATED |
| HS18993 | RAFTLIN-RELATED |
| HS18994 | VITELLINE MEMBRANE OUTER LAYER PROTEIN I-RELATED |
| HS18995 | FALZ-RELATED BROMODOMAIN-CONTAINING PROTEINS |
| HS18996 | ATP-DEPENDENT PERMEASE MDL1, MITOCHONDRIAL |
| HS18997 | ANKYRIN REPEAT CONTAINING |
| HS18998 | BASIC HELIX-LOOP-HELIX TRANSCRIPTION FACTOR, HES-RELATED |
| HS18999 | BASIC HELIX-LOOP-HELIX TRANSCRIPTION FACTOR, HES-RELATED |
| HS19000 | HOMEOBOX PROTEIN TRANSCRIPTION FACTORS |
