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 |
|---|---|
| HS14201 | PROTEIN CBG26694 |
| HS14202 | RETROTRANSPOSON |
| HS14203 | ADHESION G-PROTEIN COUPLED RECEPTOR |
| HS14204 | B-BOX DOMAIN CONTAINING |
| HS14205 | SI:CH211-198C19.1-RELATED |
| HS14206 | SI:CH211-198C19.1-RELATED |
| HS14207 | CENTROSOMAL PROTEIN OF 162 KDA |
| HS14208 | LYSOSOMAL-ASSOCIATED TRANSMEMBRANE PROTEIN |
| HS14209 | COLLAGEN ALPHA |
| HS14210 | |
| HS14211 | 2-IMINOBUTANOATE/2-IMINOPROPANOATE DEAMINASE RIDA |
| HS14212 | RIBONUCLEASES P/MRP PROTEIN SUBUNIT POP1 |
| HS14213 | UNCHARACTERIZED |
| HS14214 | VOLTAGE-GATED POTASSIUM CHANNEL |
| HS14215 | ODD-SKIPPED - RELATED |
| HS14216 | VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN 13B |
| HS14217 | |
| HS14218 | REGULATOR OF G-PROTEIN SIGNALING 22 |
| HS14219 | F-BOX ONLY PROTEIN 5 AND 43 |
| HS14220 | RNA (RNA) POLYMERASE II ASSOCIATED PROTEIN HOMOLOG |
| HS14221 | RBR FAMILY RING FINGER AND IBR DOMAIN-CONTAINING |
| HS14222 | RNA BINDING PROTEIN |
| HS14223 | 14-3-3 PROTEIN |
| HS14224 | TRANSCRIPTION FACTOR CP2 |
| HS14225 | |
| HS14226 | CALCIUM BINDING PROTEINS |
| HS14227 | |
| HS14228 | DNA-BINDING PROTEIN INHIBITOR |
| HS14229 | CENTROSOMAL PROTEIN OF 76 KDA |
| HS14230 | TYROSINE-PROTEIN PHOSPHATASE NON-RECEPTOR TYPE 61F |
| HS14231 | NUCLEAR PORE COMPLEX PROTEIN SEC13 / SEH1 FAMILY MEMBER |
| HS14232 | UNCHARACTERIZED |
| HS14233 | |
| HS14234 | |
| HS14235 | LOW DENSITY LIPOPROTEIN RECEPTOR CLASS A DOMAIN-CONTAINING 4A |
| HS14236 | |
| HS14237 | UNCHARACTERIZED |
| HS14238 | G-PROTEIN COUPLED RECEPTOR |
| HS14239 | G-PROTEIN COUPLED RECEPTOR |
| HS14240 | PALMITOYLTRANSFERASE ZDHHC16 |
| HS14241 | TRANSMEMBRANE PROTEIN 42 |
| HS14242 | UNCHARACTERIZED |
| HS14243 | DOLICHYL-DIPHOSPHOOLIGOSACCHARIDE--PROTEIN GLYCOSYLTRANSFERASE SUBUNIT |
| HS14244 | DOLICHYL-DIPHOSPHOOLIGOSACCHARIDE--PROTEIN GLYCOSYLTRANSFERASE SUBUNIT |
| HS14245 | TRANSFORMING GROWTH FACTOR-BETA RECEPTOR TYPE I AND II |
| HS14246 | GOLGI-ASSOCIATED KINASE 1B-RELATED |
| HS14247 | GLYCOSYLTRANSFERASE |
| HS14248 | MAP/MICROTUBULE AFFINITY-REGULATING KINASE |
| HS14249 | ANOCTAMIN |
| HS14250 | RE40534P-RELATED |
