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 |
|---|---|
| HS04701 | XLR/SCP3/FAM9 |
| HS04702 | ACTIN |
| HS04703 | UNCHARACTERIZED FAM3 |
| HS04704 | |
| HS04705 | SI:CH73-193C12.2-RELATED |
| HS04706 | |
| HS04707 | INWARD RECTIFIER POTASSIUM CHANNEL |
| HS04708 | |
| HS04709 | RAS-ASSOCIATING DOMAIN-CONTAINING PROTEIN |
| HS04710 | |
| HS04711 | PHD FINGER PROTEIN |
| HS04712 | DIACYLGLYCEROL KINASE |
| HS04713 | PLEIOTROPHIN FAMILY MEMBER |
| HS04714 | |
| HS04715 | ACTIVATING MOLECULE IN BECN1-REGULATED AUTOPHAGY PROTEIN 1 |
| HS04716 | NADPH OXIDASE |
| HS04717 | RETINITIS PIGMENTOSA GTPASE REGULATOR-INTERACTING PROTEIN |
| HS04718 | ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN |
| HS04719 | TRANSPOSON TY3-I GAG-POL POLYPROTEIN |
| HS04720 | N-ACETYLGLUCOSAMINYLTRANSFERASE VI |
| HS04721 | NEUROTENSIN/NEUROMEDIN N |
| HS04722 | RAS-ASSOCIATING DOMAIN CONTAINING PROTEIN |
| HS04723 | HOMEOBOX PROTEIN ARISTALESS |
| HS04724 | LEUCINE-RICH REPEAT AND IQ DOMAIN-CONTAINING PROTEIN 1-RELATED |
| HS04725 | |
| HS04726 | |
| HS04727 | SODIUM/CHLORIDE DEPENDENT TRANSPORTER |
| HS04728 | LEUCINE RICH REPEAT KINASE 2 |
| HS04729 | PROTON MYO-INOSITOL COTRANSPORTER |
| HS04730 | UNCHARACTERIZED |
| HS04731 | CHROMOSOME-ASSOCIATED KINESIN KIF4A-RELATED |
| HS04732 | COPINE |
| HS04733 | EPM2A-INTERACTING PROTEIN 1 |
| HS04734 | PROTEASE FAMILY M14 CARBOXYPEPTIDASE A,B |
| HS04735 | STRUCTURAL MAINTENANCE OF CHROMOSOMES SMC FAMILY MEMBER |
| HS04736 | BLOC-1-RELATED COMPLEX SUBUNIT 5 |
| HS04737 | N-ACETYLGLUCOSAMINYLTRANSFERASE VI |
| HS04738 | N-ACETYLGLUCOSAMINYLTRANSFERASE VI |
| HS04739 | RING FINGER PROTEIN 141-RELATED |
| HS04740 | AMP DEAMINASE |
| HS04741 | ADRENOMEDULLIN, ADM |
| HS04742 | SWAP-70 RECOMBINASE |
| HS04743 | EUKARYOTIC TRANSLATION INITIATION FACTOR 2-ALPHA KINASE EIF2-ALPHA KINASE -RELATED |
| HS04744 | ZINC FINGER PROTEIN ZIC AND GLI |
| HS04745 | ASPARTYL PROTEASE DDI-RELATED |
| HS04746 | VWFA DOMAIN-CONTAINING PROTEIN |
| HS04747 | A-KINASE-INTERACTING PROTEIN 1 |
| HS04748 | 60S RIBOSOMAL PROTEIN L27A |
| HS04749 | PHD FINGER PROTEIN |
| HS04750 | RAS-LIKE FAMILY MEMBER 11 |
