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_08847
Hgig_08848
Hgig_08849IONOTROPIC GLUTAMATE RECEPTOR
Hgig_08850NEUROTRANSMITTER GATED ION CHANNEL
Hgig_08851MULTIPLE PDZ DOMAIN PROTEIN
Hgig_08852
Hgig_08853
Hgig_08854
Hgig_08855NEUROPEPTIDE RECEPTOR-RELATED G-PROTEIN COUPLED RECEPTOR
Hgig_08856
Hgig_08857
Hgig_08858NADPH OXIDASE
Hgig_08859
Hgig_08860
Hgig_08861TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_08862
Hgig_08863
Hgig_088643'(2'),5'-BISPHOSPHATE NUCLEOTIDASE 1
Hgig_08865
Hgig_08866CYSTEINE AND HISTIDINE-RICH PROTEIN 1
Hgig_08867ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_08868REVERSE TRANSCRIPTASE
Hgig_08869REVERSE TRANSCRIPTASE
Hgig_08870CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_08871
Hgig_08872PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_08873CENTROSOMAL PROTEIN 2
Hgig_08874
Hgig_08875
Hgig_08876
Hgig_08877
Hgig_08878TRANSFORMING GROWTH FACTOR-BETA RECEPTOR TYPE I AND II
Hgig_08879LONG-CHAIN-FATTY-ACID--COA LIGASE
Hgig_08880LONG-CHAIN-FATTY-ACID--COA LIGASE
Hgig_08881ACYL-COENZYME A SYNTHETASE
Hgig_08882ZINC FINGER PROTEIN
Hgig_08883
Hgig_08884
Hgig_08885
Hgig_08886
Hgig_08887PHOSPHATIDYLINOSITOL GLYCAN
Hgig_08888STABILIN
Hgig_08889RNA-BINDING PROTEIN NOB1
Hgig_08890
Hgig_08891REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_08892EUKARYOTIC TRANSLATION INITIATION FACTOR 3 SUBUNIT I
Hgig_08893CARBOHYDRATE SULFOTRANSFERASE
Hgig_08894UPF0315 PROTEIN-RELATED
Hgig_08895
Hgig_08896RNA POLYMERASE II HOLOENZYME COMPONENT SRB7
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