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 |
|---|---|
| HS13551 | PHOSPHATIDYLINOSITOL TRANSFER PROTEIN |
| HS13552 | RH14732P |
| HS13553 | RABPHILIN, ISOFORM A |
| HS13554 | TYROSINE-PROTEIN PHOSPHATASE NON-RECEPTOR TYPE 11 |
| HS13555 | |
| HS13556 | TRANSMEMBRANE EMP24 DOMAIN-CONTAINING PROTEIN |
| HS13557 | RNA HELICASE |
| HS13558 | TRANSLATION INITIATION FACTOR EIF-2B SUBUNIT ALPHA |
| HS13559 | BCL7 RELATED |
| HS13560 | DYNACTIN 1-RELATED MICROTUBULE-BINDING |
| HS13561 | DENSITY-REGULATED PROTEIN HOMOLOG |
| HS13562 | HUNTINGTIN INTERACTING PROTEIN 1 |
| HS13563 | RNA POLYMERASE III TRANSCRIPTION INITIATION FACTOR B |
| HS13564 | PID DOMAIN-CONTAINING PROTEIN |
| HS13565 | COMPLEMENT COMPONENT C6 |
| HS13566 | FRUCTOSE-1,6-BISPHOSPHATASE-RELATED |
| HS13567 | KN MOTIF AND ANKYRIN REPEAT DOMAIN-CONTAINING |
| HS13568 | SWI/SNF-RELATED |
| HS13569 | ANION EXCHANGE PROTEIN |
| HS13570 | |
| HS13571 | DEOXYNUCLEOSIDE KINASE |
| HS13572 | MPS ONE BINDER KINASE ACTIVATOR-LIKE MOB |
| HS13573 | UNCHARACTERIZED |
| HS13574 | |
| HS13575 | LD24721P |
| HS13576 | DISCS LARGE |
| HS13577 | BETA-HEXOSAMINIDASE |
| HS13578 | POLYCOMB GROUP PROTEIN |
| HS13579 | 4.1 G PROTEIN |
| HS13580 | PIKACHURIN-LIKE PROTEIN |
| HS13581 | SUGAR KINASE |
| HS13582 | |
| HS13583 | ZINC FINGER PROTEIN |
| HS13584 | SYNAPTONEMAL COMPLEX PROTEIN-RELATED |
| HS13585 | GLIAL CELLS MISSING RELATED/GLIDE |
| HS13586 | ZINC FINGER PROTEIN |
| HS13587 | DNA REPAIR PROTEIN XRCC2 |
| HS13588 | HL01030P-RELATED |
| HS13589 | HL01030P-RELATED |
| HS13590 | RHO GTPASE ACTIVATING PROTEIN AT 15B, ISOFORM C |
| HS13591 | PERIOSTIN-RELATED |
| HS13592 | |
| HS13593 | UNCHARACTERIZED |
| HS13594 | CAVIN |
| HS13595 | DYNEIN HEAVY CHAIN 1, AXONEMAL-LIKE PROTEIN |
| HS13596 | - |
| HS13597 | TGF-BETA FAMILY |
| HS13598 | SUCCINATE--HYDROXYMETHYLGLUTARATE COA-TRANSFERASE |
| HS13599 | THO COMPLEX SUBUNIT 3 THO3 |
| HS13600 | TYROSINE-PROTEIN KINASE RECEPTOR |
