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_00796
Hgig_00797
Hgig_00798ARGININE-TRNA-PROTEIN TRANSFERASE 1
Hgig_00799ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_00800PROTEIN CBG17840
Hgig_00801TRANSMEMBRANE PROTEIN 256
Hgig_00802
Hgig_00803
Hgig_00804
Hgig_00805TRANSMEMBRANE PROTEIN 256
Hgig_00806OXYGENASE-RELATED
Hgig_00807
Hgig_00808
Hgig_00809
Hgig_00810
Hgig_00811TRANSCRIPTION INITIATION FACTOR IIA SUBUNIT 1
Hgig_00812
Hgig_00813TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_00814DUAL SPECIFICITY MITOGEN-ACTIVATED PROTEIN KINASE KINASE 5-RELATED
Hgig_00815DYNAMIN
Hgig_00816
Hgig_00817
Hgig_00818UBIQUITIN-CONJUGATING ENZYME E2
Hgig_00819ADAPTOR COMPLEX SUBUNIT BETA FAMILY MEMBER
Hgig_00820
Hgig_00821
Hgig_00822
Hgig_008232',3'-CYCLIC-NUCLEOTIDE 3'-PHOSPHODIESTERASE
Hgig_00824
Hgig_00825
Hgig_00826ZINC FINGER PROTEIN
Hgig_00827
Hgig_00828REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_00829SERINE PROTEASE FAMILY S1C HTRA-RELATED
Hgig_00830UNCHARACTERIZED
Hgig_00831
Hgig_00832ZINC FINGER PROTEIN
Hgig_00833SMALL INTEGRAL MEMBRANE PROTEIN 8
Hgig_00834SARCOSINE DEHYDROGENASE-RELATED
Hgig_00835PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_0083660S RIBOSOMAL PROTEIN L37
Hgig_00837
Hgig_00838
Hgig_00839TRANSMEMBRANE EMP24 DOMAIN-CONTAINING PROTEIN
Hgig_00840
Hgig_00841
Hgig_00842
Hgig_00843
Hgig_00844
Hgig_00845
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