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 |
|---|---|
| HS10901 | ABHYDROLASE DOMAIN-CONTAINING PROTEIN |
| HS10902 | CYCLIC NUCLEOTIDE-DEPENDENT PROTEIN KINASE |
| HS10903 | POTASSIUM CHANNEL, SUBFAMILY K |
| HS10904 | |
| HS10905 | SORTING NEXIN |
| HS10906 | DOPAMINE BETA HYDROXYLASE RELATED |
| HS10907 | RIBOSOMAL PROTEIN S6 KINASE |
| HS10908 | HOMEOBOX PROTEIN PROSPERO/PROX-1/CEH-26 |
| HS10909 | HISTONE-LYSINE N-METHYLTRANSFERASE SMYD |
| HS10910 | TYROSINE-PROTEIN PHOSPHATASE |
| HS10911 | PRO-OPIOMELANOCORTIN |
| HS10912 | UNCHARACTERIZED |
| HS10913 | OLFACTORY RECEPTOR AND ADENOSINE RECEPTOR |
| HS10914 | ADENYLATE CYCLASE TYPE 1 |
| HS10915 | EPM2A-INTERACTING PROTEIN 1 |
| HS10916 | DNA LIGASE |
| HS10917 | LIN-9 |
| HS10918 | |
| HS10919 | LD35087P |
| HS10920 | NANCE-HORAN SYNDROME PROTEIN |
| HS10921 | HEME-BINDING PROTEIN-RELATED |
| HS10922 | UNCHARACTERIZED |
| HS10923 | TESTIS DEVELOPMENT-RELATED PROTEIN-RELATED |
| HS10924 | LD30288P |
| HS10925 | AGAP005440-PA |
| HS10926 | LOW MOLECULAR WEIGHT PROTEIN TYROSINE PHOSPHATASE |
| HS10927 | ALK AND LTK LIGAND 2-RELATED |
| HS10928 | |
| HS10929 | STRUCTURAL MAINTENANCE OF CHROMOSOMES 5,6 SMC5, SMC6 |
| HS10930 | SI:DKEY-126G1.9-RELATED |
| HS10931 | NUCLEOTIDE KINASE |
| HS10932 | NUCLEOTIDE KINASE |
| HS10933 | POLYPHOSPHOINOSITIDE PHOSPHATASE |
| HS10934 | G-PROTEIN COUPLED RECEPTOR |
| HS10935 | COILED-COIL DOMAIN-CONTAINING PROTEIN 167 |
| HS10936 | KINESIN-LIKE PROTEIN KLP-3 |
| HS10937 | WASP-1 |
| HS10938 | PRE-MRNA-PROCESSING FACTOR 17 |
| HS10939 | METHYLTRANSFERASE-LIKE PROTEIN 24 |
| HS10940 | SOLUTE CARRIER FAMILY 22 MEMBER |
| HS10941 | HEPARAN SULFATE 2-O-SULFOTRANSFERASE |
| HS10942 | SAM-DOMAIN, SH3 AND NUCLEAR LOCALIZATION SIGNALS PROTEIN RELATED |
| HS10943 | LETHAL 2 GIANT LARVAE PROTEIN |
| HS10944 | ANDROGLOBIN |
| HS10945 | RAB FAMILY |
| HS10946 | METABOTROPIC GLUTAMATE RECEPTOR |
| HS10947 | PROTEIN CBG16327 |
| HS10948 | LIPOXYGENASE |
| HS10949 | LIPOXYGENASE |
| HS10950 | LAFORIN |
