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_09647-
Hgig_09648
Hgig_09649-
Hgig_09650LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED
Hgig_09651REVERSE TRANSCRIPTASE
Hgig_09652N4BP1-RELATED
Hgig_09653RHO/RAC/CDC GTPASE-ACTIVATING PROTEIN
Hgig_09654
Hgig_09655
Hgig_09656F5/8 TYPE C DOMAIN-CONTAINING PROTEIN
Hgig_09657
Hgig_09658
Hgig_09659CHLORIDE CHANNEL PROTEIN CLC FAMILY MEMBER
Hgig_09660
Hgig_09661RING FINGER PROTEIN 141-RELATED
Hgig_09662
Hgig_09663CYTOCHROME P450
Hgig_09664CYTOCHROME P450
Hgig_09665TRANSFORMER-2 SEX-DETERMINING PROTEIN-RELATED
Hgig_09666
Hgig_09667SERINE/ARGININE REPETITIVE MATRIX 2
Hgig_09668
Hgig_09669
Hgig_09670
Hgig_09671
Hgig_09672
Hgig_09673ATP-DEPENDENT RNA HELICASE RHLE-RELATED
Hgig_09674ATP-DEPENDENT RNA HELICASE RHLE-RELATED
Hgig_09675ADENOSINE KINASE
Hgig_09676SPHINGOMYELIN PHOSPHODIESTERASE 4
Hgig_09677SPHINGOMYELIN PHOSPHODIESTERASE 4
Hgig_09678
Hgig_09679CARBOXYPEPTIDASE REGULATORY REGION-CONTAINING
Hgig_09680
Hgig_09681N-ACETYLTRANSFERASE 10
Hgig_09682XRP2 PROTEIN
Hgig_09683ATP-DEPENDENT RNA HELICASE RHLE-RELATED
Hgig_09684N-ACETYLTRANSFERASE 10
Hgig_09685SPIRE
Hgig_09686
Hgig_09687
Hgig_09688
Hgig_09689ISLET CELL AUTOANTIGEN 1
Hgig_09690UNCHARACTERIZED
Hgig_09691UNCHARACTERIZED
Hgig_09692ISLET CELL AUTOANTIGEN 1
Hgig_09693
Hgig_09694GUANYLYL CYCLASE
Hgig_09695
Hgig_09696TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
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