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_00846
Hgig_00847
Hgig_00848PROTEIN CBG27172
Hgig_00849
Hgig_00850
Hgig_00851
Hgig_00852TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_00853
Hgig_00854
Hgig_00855
Hgig_00856
Hgig_00857
Hgig_00858
Hgig_00859
Hgig_00860
Hgig_00861
Hgig_00862
Hgig_00863TOLL-LIKE RECEPTOR
Hgig_00864
Hgig_00865
Hgig_00866
Hgig_00867CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_00868
Hgig_00869RAD50
Hgig_00870
Hgig_00871
Hgig_00872NUCLEOLAR COMPLEX 2 AND RAD4-RELATED
Hgig_00873NH 3 /GLUTAMINE-DEPENDENT NAD + SYNTHETASE
Hgig_00874NH 3 /GLUTAMINE-DEPENDENT NAD + SYNTHETASE
Hgig_00875NH 3 /GLUTAMINE-DEPENDENT NAD + SYNTHETASE
Hgig_00876
Hgig_00877NH 3 /GLUTAMINE-DEPENDENT NAD + SYNTHETASE
Hgig_00878PROTEIN CBG24663
Hgig_00879SEC24-RELATED PROTEIN
Hgig_00880
Hgig_00881EUKARYOTIC TRANSLATION INITIATION FACTOR 2C
Hgig_00882XPA-BINDING PROTEIN 1-RELATED
Hgig_00883
Hgig_00884NUDIX T16 FAMILY MEMBER
Hgig_00885
Hgig_00886RNA HELICASE
Hgig_0088737S RIBOSOMAL PROTEIN S22
Hgig_00888
Hgig_00889
Hgig_00890
Hgig_00891
Hgig_00892DTDP-4-DEHYDRORHAMNOSE REDUCTASE
Hgig_00893
Hgig_00894
Hgig_00895ODD-SKIPPED - RELATED
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