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 |
|---|---|
| HS15051 | STERILE20-LIKE KINASE, ISOFORM B-RELATED |
| HS15052 | SOLUTE CARRIER FAMILY 17 |
| HS15053 | RHO GUANINE NUCLEOTIDE EXCHANGE FACTOR 33 |
| HS15054 | ATP-DEPENDENT RNA HELICASE DBP3 |
| HS15055 | POTASSIUM VOLTAGE-GATED CHANNEL SUBFAMILY KQT MEMBER 4 |
| HS15056 | |
| HS15057 | CB1 CANNABINOID RECEPTOR-INTERACTING PROTEIN 1 |
| HS15058 | PROTEIN PHOSPATASE 3 REGULATORY SUBUNIT B ALPHA ISOFORM TYPE 1 |
| HS15059 | RIBONUCLEASE Y |
| HS15060 | MRNA EXPORT FACTOR AND BUB3 |
| HS15061 | SUN-COR STEROID HORMONE RECEPTOR CO-REPRESSOR |
| HS15062 | EWING'S TUMOR-ASSOCIATED ANTIGEN 1 ETAA1 |
| HS15063 | |
| HS15064 | |
| HS15065 | NUCLEAR FACTOR NF-KAPPA-B PROTEIN |
| HS15066 | SHIELDIN COMPLEX SUBUNIT 2 |
| HS15067 | |
| HS15068 | |
| HS15069 | SYNUCLEIN |
| HS15070 | CYSTATIN-F |
| HS15071 | STRICTOSIDINE SYNTHASE-RELATED |
| HS15072 | NUCLEAR FACTOR NF-KAPPA-B PROTEIN |
| HS15073 | ADENOSINE/GUANOSINE DIPHOSPHATASE |
| HS15074 | ALPHA/BETA HYDROLASE DOMAIN-CONTAINING PROTEIN |
| HS15075 | PARTNER OF SLD5 |
| HS15076 | NINEIN |
| HS15077 | NINEIN |
| HS15078 | DISCOIDIN, CUB, EGF, LAMININ , AND ZINC METALLOPROTEASE DOMAIN CONTAINING |
| HS15079 | RETROTRANSPOSON |
| HS15080 | |
| HS15081 | RING FINGER AND SRY DOMAIN-CONTAINING |
| HS15082 | AMPHOTERIN-INDUCED PROTEIN |
| HS15083 | |
| HS15084 | RNA RECOGNITION MOTIF-CONTAINING |
| HS15085 | ARMET-LIKE PROTEIN |
| HS15086 | OXIDATIVE STRESS-RESPONSE SERINE-RICH PROTEIN 1 |
| HS15087 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
| HS15088 | SYNDECAN |
| HS15089 | TGF-BETA FAMILY |
| HS15090 | UBIQUINOL-CYTOCHROME C REDUCTASE COMPLEX ASSEMBLY FACTOR 1 FAMILY MEMBER |
| HS15091 | |
| HS15092 | UNCHARACTERIZED |
| HS15093 | |
| HS15094 | MATRIX METALLOPROTEINASE |
| HS15095 | |
| HS15096 | EXPRESSED PROTEIN |
| HS15097 | MICROTUBULE-ASSOCIATED PROTEINS 1A/1B LIGHT CHAIN 3-RELATED |
| HS15098 | PROTEIN SSUH2 HOMOLOG |
| HS15099 | SEMAPHORIN |
| HS15100 | SPHINGOMYELIN PHOSPHODIESTERASE 4 |
