About Hirondellea gigas

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.


Basic Information
SpeciesPhylumCommon NameEcosystemDepthHabitatNCBI Taxonomy ID
Hirondellea gigasArthropoda-Deep sea6,800-11,000Mariana Trench in the northwestern Pacific Ocean1518452

Genome Assembly Information
Genome AssemblyGenome SizeAssembly levelReleased yearWGS accessionSubmitterBioProjectBUSCO completenessGene Number
-13.92GbChromosome2025CNA0142381-CNP000537489.34%27,881

References
TitleJournalPubmed ID
The amphipod genome reveals population dynamics and adaptations to hadal environmentCell40054448

Gene Information

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Gene IDDescription
Hgig_09197
Hgig_09198UBIQUINONE BIOSYNTHESIS MONOOXYGENASE COQ6, MITOCHONDRIAL
Hgig_09199
Hgig_09200REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_09201UNCHARACTERIZED
Hgig_09202SH2-SH3 ADAPTOR PROTEIN-RELATED
Hgig_09203ALPHA-GLUCOSIDASE
Hgig_09204UNCHARACTERIZED
Hgig_09205
Hgig_09206
Hgig_09207SH2-SH3 ADAPTOR PROTEIN-RELATED
Hgig_09208
Hgig_09209PROSTAGLANDIN G/H SYNTHASE
Hgig_09210ZINC FINGER MATRIN-TYPE PROTEIN 2
Hgig_09211CYTOSOLIC PHOSPHOLIPASE A2
Hgig_09212PROSTAGLANDIN G/H SYNTHASE
Hgig_09213UBIQUITIN-CONJUGATING ENZYME E2
Hgig_09214
Hgig_09215NADPH OXIDASE
Hgig_09216SARCOSINE DEHYDROGENASE-RELATED
Hgig_09217
Hgig_09218
Hgig_09219CENTROMERE PROTEIN E
Hgig_09220
Hgig_09221SPROUTY-RELATED, EVH1 DOMAIN-CONTAINING PROTEIN FAMILY MEMBER
Hgig_09222SPROUTY-RELATED, EVH1 DOMAIN-CONTAINING PROTEIN FAMILY MEMBER
Hgig_09223
Hgig_09224
Hgig_09225SYNAPTIC ADHESION-LIKE MOLECULE SALM
Hgig_09226IG(IMMUNOGLOBULIN) AND LRR(LEUCINE RICH REPEAT) DOMAINS
Hgig_09227
Hgig_09228
Hgig_09229REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_09230RESPIRATORY NITRATE REDUCTASE
Hgig_09231AT29763P-RELATED
Hgig_09232TRANSLATION INITIATION FACTOR IF-2-RELATED
Hgig_09233
Hgig_09234
Hgig_09235ZINC FINGER PROTEIN
Hgig_09236
Hgig_09237ZINC FINGER PROTEIN
Hgig_09238
Hgig_09239
Hgig_09240ZGC:174356
Hgig_09241SPROUTY-RELATED, EVH1 DOMAIN-CONTAINING PROTEIN FAMILY MEMBER
Hgig_09242SOLUTE CARRIER FAMILY 35
Hgig_09243TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_09244
Hgig_09245HOMEO BOX HB9 LIKE A-RELATED
Hgig_09246HOMEO BOX HB9 LIKE A-RELATED
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