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_01596
Hgig_01597UBIQUITIN-LIKE-CONJUGATING ENZYME ATG3
Hgig_01598ZINC FINGER PROTEIN
Hgig_01599
Hgig_016004.1 G PROTEIN
Hgig_01601
Hgig_01602
Hgig_01603
Hgig_01604MOLTING PROTEIN MLT-4
Hgig_01605MASK PROTEIN
Hgig_01606
Hgig_01607SIGNAL PEPTIDASE COMPLEX CATALYTIC SUBUNIT SEC11
Hgig_01608TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_01609
Hgig_01610MUCIN
Hgig_01611
Hgig_01612
Hgig_01613GLR0591 PROTEIN
Hgig_01614
Hgig_01615PROTEIN CBG20824
Hgig_01616
Hgig_01617UPF0240 PROTEIN
Hgig_01618DEOXYNUCLEOSIDE TRIPHOSPHATE TRIPHOSPHOHYDROLASE
Hgig_01619NAD-DEPENDENT PROTEIN DEACYLASE SIRTUIN-5, MITOCHONDRIAL-RELATED
Hgig_01620PSEUDOURIDYLATE SYNTHASE
Hgig_01621
Hgig_01622TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_01623
Hgig_01624
Hgig_01625
Hgig_01626
Hgig_01627
Hgig_01628
Hgig_01629
Hgig_01630
Hgig_01631
Hgig_01632TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_01633
Hgig_01634UNCHARACTERIZED
Hgig_01635NON-SPECIFIC SERINE/THREONINE PROTEIN KINASE
Hgig_01636AAA-FAMILY ATPASE
Hgig_01637
Hgig_01638IONOTROPIC RECEPTOR 20A-RELATED
Hgig_01639CALICYLIN BINDING PROTEIN
Hgig_01640
Hgig_01641
Hgig_01642POL PROTEIN
Hgig_01643EXONUCLEASE, PHAGE-TYPE/RECB, C-TERMINAL DOMAIN-CONTAINING PROTEIN
Hgig_01644
Hgig_01645
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