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 |
|---|---|
| HS11651 | DNA-DAMAGE-INDUCIBLE TRANSCRIPT 4 PROTEIN DDIT4 |
| HS11652 | AT29763P-RELATED |
| HS11653 | ACYL-COA DESATURASE |
| HS11654 | SEC31-RELATED PROTEIN |
| HS11655 | NADH-UBIQUINONE OXIDOREDUCTASE ASHI SUBUNIT |
| HS11656 | GLUTATHIONE PEROXIDASE |
| HS11657 | MITOCHONDRIAL ATP SYNTHASE COUPLING FACTOR B |
| HS11658 | PAIRED BOX PROTEIN PAX-6-RELATED-RELATED |
| HS11659 | CARBOHYDRATE SULFOTRANSFERASE |
| HS11660 | BAX INHIBITOR-RELATED |
| HS11661 | FAT ATYPICAL CADHERIN-RELATED |
| HS11662 | SYNAPTIC ADHESION-LIKE MOLECULE SALM |
| HS11663 | SYNAPTIC ADHESION-LIKE MOLECULE SALM |
| HS11664 | OPSIN |
| HS11665 | - |
| HS11666 | CARNITINE O-ACYLTRANSFERASE |
| HS11667 | POLY ADP-RIBOSE GLYCOHYDROLASE |
| HS11668 | ADAM A DISINTEGRIN AND METALLOPROTEASE DOMAIN |
| HS11669 | L-SERYL-TRNA(SEC) KINASE |
| HS11670 | ZINC FINGER PROTEIN |
| HS11671 | ACYL-COA DEHYDROGENASE |
| HS11672 | ACYL-COA DEHYDROGENASE |
| HS11673 | HOMEOBOX PROTEIN HMX |
| HS11674 | MRNA EXPORT FACTOR AND BUB3 |
| HS11675 | SI:ZFOS-911D5.4 |
| HS11676 | G-PROTEIN COUPLED RECEPTOR |
| HS11677 | PROTEASE M14 CARBOXYPEPTIDASE |
| HS11678 | CARBOHYDRATE SULFOTRANSFERASE 15 |
| HS11679 | AMINOTRANSFERASE CLASS III |
| HS11680 | 4-NITROPHENYLPHOSPHATASE-RELATED |
| HS11681 | - |
| HS11682 | 4-HYDROXYPHENYLPYRUVATE DIOXYGENASE |
| HS11683 | UBIQUITIN THIOESTERASE |
| HS11684 | C-TERMINAL-BINDING PROTEIN |
| HS11685 | MATRIX METALLOPROTEINASE |
| HS11686 | UROPORPHYRINOGEN III SYNTHASE |
| HS11687 | BRCA2 AND CDKN1A INTERACTING PROTEIN |
| HS11688 | ATP-DEPENDENT RNA HELICASE |
| HS11689 | ADAM A DISINTEGRIN AND METALLOPROTEASE DOMAIN |
| HS11690 | ALMS1-RELATED |
| HS11691 | DEDICATOR OF CYTOKINESIS |
| HS11692 | INHIBITORY SYNAPTIC FACTOR 2A-RELATED |
| HS11693 | FORKHEAD BOX PROTEIN |
| HS11694 | CLARIN |
| HS11695 | RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE |
| HS11696 | ADENOSINE/GUANOSINE DIPHOSPHATASE |
| HS11697 | POTASSIUM CHANNEL, SUBFAMILY K |
| HS11698 | THROMBOSPONDIN |
| HS11699 | PROTEASOME ACTIVATOR COMPLEX SUBUNIT 4 |
| HS11700 | CATION TRANSPORT PROTEIN CHAC-RELATED |
