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_17847ENDONUCLEASE-RELATED
Hgig_17848REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_17849ENDONUCLEASE-RELATED
Hgig_17850POL PROTEIN
Hgig_17851
Hgig_17852ZINC FINGER PROTEIN ZIC AND GLI
Hgig_17853
Hgig_17854
Hgig_17855
Hgig_17856
Hgig_17857
Hgig_17858
Hgig_17859PROTEIN CBG27172
Hgig_17860REVERSE TRANSCRIPTASE
Hgig_17861
Hgig_17862ZINC FINGER PROTEIN ZIC AND GLI
Hgig_17863
Hgig_17864TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_17865
Hgig_17866
Hgig_17867
Hgig_17868
Hgig_17869CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_17870REVERSE TRANSCRIPTASE
Hgig_17871KELCH PROTEIN
Hgig_17872
Hgig_17873
Hgig_17874POL PROTEIN
Hgig_17875
Hgig_17876
Hgig_17877TRANSCRIPTIONAL REPRESSOR PROTEIN YY
Hgig_17878KELCH PROTEIN
Hgig_17879
Hgig_17880
Hgig_17881
Hgig_17882CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_17883
Hgig_17884
Hgig_17885
Hgig_17886ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_17887
Hgig_17888OSJNBA0013A04.12 PROTEIN
Hgig_17889
Hgig_17890
Hgig_17891
Hgig_17892REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_17893
Hgig_17894
Hgig_17895ZINC FINGER PROTEIN
Hgig_17896
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