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_06996
Hgig_06997
Hgig_06998TRICHOHYALIN-RELATED
Hgig_06999
Hgig_07000
Hgig_07001
Hgig_07002
Hgig_07003
Hgig_07004
Hgig_07005
Hgig_07006ELONGATION FACTOR TU-RELATED
Hgig_07007C2 DOMAIN-CONTAINING PROTEIN
Hgig_07008
Hgig_07009PROTEIN O-MANNOSYL-TRANSFERASE TMTC2
Hgig_07010CYCLIC NUCLEOTIDE PHOSPHODIESTERASE
Hgig_07011
Hgig_07012
Hgig_07013UNCHARACTERIZED
Hgig_07014
Hgig_07015DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_07016
Hgig_07017HYPOTHETICAL HEAT DOMAIN-CONTAINING
Hgig_07018GLUTATHIONE REDUCTASE
Hgig_07019MAKORIN-RELATED
Hgig_07020PROTEIN CBG24663
Hgig_07021UNCHARACTERIZED
Hgig_07022REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_07023UNCHARACTERIZED
Hgig_07024
Hgig_07025
Hgig_07026
Hgig_07027PROTEIN EVA-1
Hgig_07028PROTEIN EVA-1
Hgig_07029
Hgig_07030PIGGYBAC TRANSPOSABLE ELEMENT-DERIVED PROTEIN 4
Hgig_07031
Hgig_07032
Hgig_07033
Hgig_07034CEREBELLIN-RELATED
Hgig_07035ZINC FINGER PROTEIN
Hgig_07036
Hgig_07037
Hgig_07038UNCHARACTERIZED
Hgig_07039REVERSE TRANSCRIPTASE
Hgig_07040BAT2 HLA-B-ASSOCIATED TRANSCRIPT 2
Hgig_07041PROTEIN RCC2
Hgig_07042APRATAXIN-RELATED
Hgig_07043
Hgig_07044
Hgig_07045
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