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_27499-
Hgig_27500PR DOMAIN ZINC FINGER PROTEIN
Hgig_27501TRANSPOSABLE ELEMENT-RELATED
Hgig_27502
Hgig_27503
Hgig_27504
Hgig_27505PROTEIN CBG27172
Hgig_27506TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27507POL PROTEIN
Hgig_27508PROTEIN CBG26694
Hgig_27509ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27510ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27511REVERSE TRANSCRIPTASE
Hgig_27512
Hgig_27513CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_27514
Hgig_27515
Hgig_27516AGAP005574-PA
Hgig_27517
Hgig_27518ZINC FINGER PROTEIN
Hgig_27519
Hgig_27520ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27521
Hgig_27522
Hgig_27523TRANSPOSASE-RELATED
Hgig_27524
Hgig_27525ZINC FINGER PROTEIN
Hgig_27526ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27527
Hgig_27528TRANSPOSABLE ELEMENT-RELATED
Hgig_27529REVERSE TRANSCRIPTASE
Hgig_27530
Hgig_27531TRANSPOSABLE ELEMENT-RELATED
Hgig_27532ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27533
Hgig_27534PROTEIN CBG24663
Hgig_27535
Hgig_27536
Hgig_27537
Hgig_27538
Hgig_27539TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27540REVERSE TRANSCRIPTASES
Hgig_27541
Hgig_27542
Hgig_27543ZINC FINGER PROTEIN
Hgig_27544PRE-MRNA CLEAVAGE COMPLEX II
Hgig_27545
Hgig_27546
Hgig_27547
Hgig_27548
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