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_18647
Hgig_18648COLLAGEN IV NC1 DOMAIN-CONTAINING PROTEIN
Hgig_18649
Hgig_18650
Hgig_18651
Hgig_18652
Hgig_18653
Hgig_18654
Hgig_18655HEPARANASE
Hgig_18656ACROSIN-RELATED
Hgig_18657HEPARANASE
Hgig_18658HEPARANASE
Hgig_18659HEPARANASE
Hgig_18660HEPARANASE
Hgig_18661
Hgig_18662
Hgig_18663
Hgig_18664
Hgig_18665
Hgig_18666
Hgig_18667
Hgig_18668DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_18669
Hgig_18670SARCOSPAN
Hgig_18671SARCOSPAN
Hgig_18672
Hgig_18673
Hgig_18674
Hgig_18675C-1-TETRAHYDROFOLATE SYNTHASE, CYTOPLASMIC-RELATED
Hgig_18676C-1-TETRAHYDROFOLATE SYNTHASE, CYTOPLASMIC-RELATED
Hgig_18677STRICTOSIDINE SYNTHASE-RELATED
Hgig_18678
Hgig_18679
Hgig_18680
Hgig_18681
Hgig_18682DRAB11-RELATED
Hgig_18683U3 SMALL NUCLEOLAR RNA INTERACTING PROTEIN 2
Hgig_18684CLEAVAGE/POLYADENYLATION FACTOR IA SUBUNIT CLP1P
Hgig_18685
Hgig_18686
Hgig_18687
Hgig_18688U2 SNRNP AUXILIARY FACTOR, SMALL SUBUNIT
Hgig_18689
Hgig_18690U2 SNRNP AUXILIARY FACTOR, SMALL SUBUNIT
Hgig_18691
Hgig_18692
Hgig_18693REVERSE TRANSCRIPTASES
Hgig_18694
Hgig_18695
Hgig_18696
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