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 |
|---|---|
| HS13651 | MICOS COMPLEX SUBUNIT MIC26 / MIC27 FAMILY MEMBER |
| HS13652 | LD33804P |
| HS13653 | |
| HS13654 | EUKARYOTIC TRANSLATION INITIATION FACTOR 2 SUBUNIT 3 FAMILY MEMBER |
| HS13655 | LEUCINE-RICH REPEAT-CONTAINING PROTEIN 31 |
| HS13656 | LEUCINE-RICH REPEAT-CONTAINING PROTEIN 34 |
| HS13657 | AGAP004733-PA |
| HS13658 | PR DOMAIN ZINC FINGER PROTEIN |
| HS13659 | PHOSPHOLIPASE D |
| HS13660 | MISSHAPEN LIKE KINASE 1 |
| HS13661 | TRANSLATION INITIATION FACTOR 5A FAMILY MEMBER |
| HS13662 | |
| HS13663 | |
| HS13664 | 60S RIBOSOMAL PROTEIN L22 |
| HS13665 | INNER MEMBRANE TRANSPORTER YGJI-RELATED |
| HS13666 | CLAUDIN |
| HS13667 | POLYCOMB GROUP PROTEIN |
| HS13668 | EPITHELIAL-STROMAL INTERACTION PROTEIN 1 |
| HS13669 | CULLIN |
| HS13670 | HISTONE-LYSINE N-METHYLTRANSFERASE E(Z) |
| HS13671 | HISTONE-LYSINE N-METHYLTRANSFERASE E(Z) |
| HS13672 | U6 SNRNA-ASSOCIATED PROTEIN |
| HS13673 | LATE SECRETORY PATHWAY PROTEIN AVL9-RELATED |
| HS13674 | KELCH PROTEIN |
| HS13675 | BUCKY BALL-RELATED |
| HS13676 | |
| HS13677 | BUCKY BALL-RELATED |
| HS13678 | TRIPARTITE MOTIF-CONTAINING PROTEIN 2-LIKE PROTEIN |
| HS13679 | CADHERIN-23 |
| HS13680 | G-PROTEIN COUPLED RECEPTOR |
| HS13681 | RIBONUCLEASE III |
| HS13682 | CADHERIN-23 |
| HS13683 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS13684 | CADHERIN-23 |
| HS13685 | |
| HS13686 | CADHERIN-23 |
| HS13687 | CADHERIN-23 |
| HS13688 | ENHANCER OF POLYCOMB |
| HS13689 | COLLAGEN ALPHA |
| HS13690 | PROTEASE FAMILY C26 GAMMA-GLUTAMYL HYDROLASE |
| HS13691 | PROTEASE FAMILY C26 GAMMA-GLUTAMYL HYDROLASE |
| HS13692 | PROTEASE FAMILY S9B,C DIPEPTIDYL-PEPTIDASE IV-RELATED |
| HS13693 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
| HS13694 | - |
| HS13695 | ADHESION G-PROTEIN COUPLED RECEPTOR |
| HS13696 | PATCHED-RELATED |
| HS13697 | ZINC METALLOPROTEASE FAMILY M13 NEPRILYSIN-RELATED |
| HS13698 | PROTEASE M50 MEMBRANE-BOUND TRANSCRIPTION FACTOR SITE 2 PROTEASE |
| HS13699 | SMALL MUSCULAR PROTEIN |
| HS13700 | LD33804P |
