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_19797PROTEIN RER1
Hgig_19798DISCS LARGE
Hgig_19799
Hgig_19800PROTEIN RER1
Hgig_19801DEOXYNUCLEOSIDE KINASE
Hgig_19802GH03947P
Hgig_19803
Hgig_19804GH03947P
Hgig_19805ACTIN-RELATED PROTEIN 2/3 COMPLEX SUBUNIT 1
Hgig_19806DISCONNECTED-RELATED
Hgig_19807BETA1,3-GALACTOSYLTRANSFERASE
Hgig_19808
Hgig_19809
Hgig_19810SENTRIN-SPECIFIC PROTEASE
Hgig_19811G PATCH DOMAIN CONTAINING PROTEIN
Hgig_19812SENTRIN-SPECIFIC PROTEASE
Hgig_19813G PATCH DOMAIN CONTAINING PROTEIN
Hgig_19814
Hgig_19815
Hgig_19816BASIC HELIX-LOOP-HELIX PROTEIN NEUROGENIN-RELATED
Hgig_19817
Hgig_19818SUCCINYL-COA SYNTHETASE BETA CHAIN
Hgig_19819
Hgig_19820
Hgig_19821
Hgig_19822SEC63 DOMAIN-CONTAINING
Hgig_19823
Hgig_19824
Hgig_19825
Hgig_19826CALCIUM BINDING PROTEINS
Hgig_19827CALCIUM BINDING PROTEINS
Hgig_19828RING FINGER DOMAIN-CONTAINING, POLYCOMB GROUP COMPONENT
Hgig_19829RING FINGER DOMAIN-CONTAINING, POLYCOMB GROUP COMPONENT
Hgig_19830RING FINGER DOMAIN-CONTAINING, POLYCOMB GROUP COMPONENT
Hgig_19831RING FINGER DOMAIN-CONTAINING, POLYCOMB GROUP COMPONENT
Hgig_19832
Hgig_19833
Hgig_19834ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_19835
Hgig_19836
Hgig_19837OXIDASE/PEROXIDASE
Hgig_19838NADPH OXIDASE
Hgig_19839
Hgig_19840TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_19841RUNT RELATED
Hgig_19842
Hgig_19843REVERSE TRANSCRIPTASE
Hgig_19844
Hgig_19845ATP-DEPENDENT RNA HELICASE DBP3
Hgig_19846ATP-DEPENDENT RNA HELICASE RHLE-RELATED
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