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 |
|---|---|
| HS10951 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS10952 | EPM2A-INTERACTING PROTEIN 1 |
| HS10953 | E3 UBIQUITIN-PROTEIN LIGASE KCMF1 |
| HS10954 | SYNTAXIN |
| HS10955 | SYNTAXIN |
| HS10956 | C-1-TETRAHYDROFOLATE SYNTHASE, CYTOPLASMIC-RELATED |
| HS10957 | A-KINASE ANCHOR PROTEIN 12 |
| HS10958 | ZINC FINGER PROTEIN |
| HS10959 | UNCHARACTERIZED |
| HS10960 | KNIRPS-RELATED PROTEIN-RELATED |
| HS10961 | SPECTRIN REPEAT CONTAINING NUCLEAR ENVELOPE PROTEIN 2 |
| HS10962 | MYC TARGET PROTEIN 1 |
| HS10963 | PROTEIN SERAC1 |
| HS10964 | GENERAL TRANSCRIPTION FACTOR IIH SUBUNIT 5 |
| HS10965 | T-COMPLEX-ASSOCIATED-TESTIS-EXPRESSED 1/ DYNEIN LIGHT CHAIN |
| HS10966 | TRANSMEMBRANE PROTEIN 181 |
| HS10967 | TUBBY-RELATED |
| HS10968 | MITOCHONDRIAL 28S RIBOSOMAL PROTEIN S10 |
| HS10969 | |
| HS10970 | |
| HS10971 | IP14615P |
| HS10972 | FLAP ENDONUCLEASE FAMILY MEMBER |
| HS10973 | PEPTIDYL-PROLYL CIS-TRANS ISOMERASE |
| HS10974 | MUCIN/PORIMIN |
| HS10975 | UNCHARACTERIZED DUF1167 |
| HS10976 | P53 REGULATED PA26 NUCLEAR PROTEIN SESTRIN |
| HS10977 | ARMADILLO REPEAT CONTAINING 2 |
| HS10978 | FORKHEAD BOX PROTEIN O |
| HS10979 | ATPASE N2B |
| HS10980 | RE52028P |
| HS10981 | NUCLEAR HORMONE RECEPTOR |
| HS10982 | OSTEOPETROSIS ASSOCIATED TRANSMEMBRANE PROTEIN 1 |
| HS10983 | TARSH-RELATED FIBRONECTIN DOMAIN-CONTAINING |
| HS10984 | SUPEROXIDE DISMUTASE 2 |
| HS10985 | WILMS' TUMOR 1-ASSOCIATING PROTEIN |
| HS10986 | ACETYL-COA C-ACYLTRANSFERASE |
| HS10987 | CHAPERONIN |
| HS10988 | SI:DKEY-19B23.11-RELATED |
| HS10989 | SI:DKEY-19B23.11-RELATED |
| HS10990 | TETRATRICOPEPTIDE REPEAT PROTEIN 32 |
| HS10991 | COLLAGEN ALPHA |
| HS10992 | |
| HS10993 | LYSOSOMAL-ASSOCIATED TRANSMEMBRANE PROTEIN |
| HS10994 | RNA BINDING PROTEIN PUMILIO-RELATED |
| HS10995 | RHO FAMILY GTPASE |
| HS10996 | APOLIPOPROTEIN B |
| HS10997 | APOLIPOPROTEIN B |
| HS10998 | CALCIUM BINDING PROTEINS |
| HS10999 | PROTEIN DISULFIDE-ISOMERASE A6 |
| HS11000 | VOLTAGE-GATED POTASSIUM CHANNEL |
