Hirondellea gigas is a species of amphipod crustacean found in the hadal zone of the Pacific Ocean, particularly in the Mariana Trench. It is adapted to extreme deep-sea environments, living at depths exceeding 10,000 meters where pressures are immense and temperatures are near freezing. This species feeds on organic matter that sinks to the ocean floor, playing a crucial role in the deep-sea ecosystem as a scavenger. Its unique adaptations, such as a lightweight exoskeleton and specialized enzymes, allow it to survive and thrive in one of the most extreme habitats on Earth.
Animalia (Kingdom); Arthropoda (Phylum); Crustacea (Subphylum); Multicrustacea (Superclass); Malacostraca (Class); Eumalacostraca (Subclass); Peracarida (Superorder); Amphipoda (Order); Amphilochidea (Suborder); Lysianassida (Infraorder); Lysianassidira (Parvorder); Lysianassoidea (Superfamily); Hirondelleidae (Family); Hirondellea (Genus); Hirondellea gigas (Species)
Tetronychia gigas Birstein & M. Vinogradov, 1955
Philippine Trench from Philippine Sea, Mariana Trench from North Pacific Ocean and Kuril-Kamchatka Trench
Species | Phylum | Common Name | Ecosystem | Depth | Habitat | NCBI Taxonomy ID |
---|---|---|---|---|---|---|
Hirondellea gigas | Arthropoda | - | Deep sea | 6,800-11,000 | Mariana Trench in the northwestern Pacific Ocean | 1518452 |
Genome Assembly | Genome Size | Assembly level | Released year | WGS accession | Submitter | BioProject | BUSCO completeness (%) | Scaffold/Contig N50 (kb) | GC content (%) | Repeat Rate (%) | Gene Number |
---|---|---|---|---|---|---|---|---|---|---|---|
- | 13.92Gb | Chromosome | 2025 | CNA0142381 | - | CNP0005374 | 89.34 | 458,700/466.1 | 38.8 | 72.75 | 27,881 |
Title | Journal | Pubmed ID |
---|---|---|
The amphipod genome reveals population dynamics and adaptations to hadal environment | Cell | 40054448 |
Gene ID | Description |
---|---|
Hgig_17247 | UNCHARACTERIZED |
Hgig_17248 | UNCHARACTERIZED |
Hgig_17249 | TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN |
Hgig_17250 | WD40 REPEAT PROTEIN |
Hgig_17251 | COATOMER |
Hgig_17252 | |
Hgig_17253 | |
Hgig_17254 | TRNA (URACIL-5-)-METHYLTRANSFERASE |
Hgig_17255 | |
Hgig_17256 | HOMEOBOX PROTEIN ABDOMINAL-B |
Hgig_17257 | PROTEIN CBG27172 |
Hgig_17258 | HOMEOBOX PROTEIN HOX |
Hgig_17259 | |
Hgig_17260 | HOMEOBOX PROTEIN HOX |
Hgig_17261 | HOMEOBOX PROTEIN HOX |
Hgig_17262 | HOMEOTIC PROTEIN DEFORMED |
Hgig_17263 | HOMEOTIC PROTEIN DEFORMED |
Hgig_17264 | |
Hgig_17265 | PROTEIN CBG27172 |
Hgig_17266 | |
Hgig_17267 | PROTEIN ZERKNUELLT 1-RELATED |
Hgig_17268 | HOMEOBOX PROTEIN ROUGH-RELATED |
Hgig_17269 | SYNTAXIN-18 |
Hgig_17270 | UPSET, ISOFORM A |
Hgig_17271 | REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN |
Hgig_17272 | REVERSE TRANSCRIPTASE |
Hgig_17273 | AMINOMETHYLTRANSFERASE |
Hgig_17274 | UBIQUITIN-PROTEIN LIGASE E3A-RELATED |
Hgig_17275 | |
Hgig_17276 | UDP-GLUCURONIC ACID DECARBOXYLASE-RELATED |
Hgig_17277 | |
Hgig_17278 | INTRAFLAGELLAR TRANSPORT PROTEIN 122 FAMILY PROTEIN-RELATED |
Hgig_17279 | HIGH-AFFINITY CHOLINE TRANSPORTER 1 |
Hgig_17280 | PLATELET-DERIVED GROWTH FACTOR |
Hgig_17281 | |
Hgig_17282 | - |
Hgig_17283 | ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4 |
Hgig_17284 | |
Hgig_17285 | REVERSE TRANSCRIPTASE |
Hgig_17286 | REVERSE TRANSCRIPTASE |
Hgig_17287 | |
Hgig_17288 | |
Hgig_17289 | |
Hgig_17290 | BEAT PROTEIN |
Hgig_17291 | |
Hgig_17292 | |
Hgig_17293 | |
Hgig_17294 | SODIUM/DICARBOXYLATE SYMPORTER-RELATED |
Hgig_17295 | UV-STIMULATED SCAFFOLD PROTEIN A |
Hgig_17296 | GUANINE NUCLEOTIDE EXCHANGE FACTOR |