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_03546
Hgig_03547
Hgig_03548ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_03549SPECKLE-TYPE POZ PROTEIN
Hgig_03550
Hgig_03551
Hgig_03552
Hgig_03553
Hgig_03554REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_03555
Hgig_03556
Hgig_03557
Hgig_03558ACROSIN-RELATED
Hgig_03559ARGINASE
Hgig_03560UNCHARACTERIZED
Hgig_03561(E3-INDEPENDENT) E2 UBIQUITIN-CONJUGATING ENZYME
Hgig_03562TRANSPOSASE-RELATED
Hgig_03563PROTEIN CBG24663
Hgig_03564
Hgig_03565PROTEIN CBG26694
Hgig_03566SUPEROXIDE DISMUTASE 2
Hgig_03567ALPHA-(1,3)-FUCOSYLTRANSFERASE C-RELATED
Hgig_03568PROTEIN SIDEKICK
Hgig_03569
Hgig_03570CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_03571
Hgig_03572
Hgig_03573
Hgig_03574
Hgig_03575SYNAPTOSOMAL ASSOCIATED PROTEIN
Hgig_03576
Hgig_03577
Hgig_03578
Hgig_03579
Hgig_03580
Hgig_03581METALLOPROTEASE TLDD
Hgig_03582
Hgig_03583METALLOPROTEASE TLDD
Hgig_03584PEPTIDYL-TRNA HYDROLASE 2
Hgig_03585PEPTIDYL-TRNA HYDROLASE 2
Hgig_03586SERINE-THREONINE PROTEIN KINASE
Hgig_03587PEPTIDYL-TRNA HYDROLASE 2
Hgig_03588ALPHA/BETA HYDROLASE DOMAIN-CONTAINING PROTEIN
Hgig_03589
Hgig_03590PROTEIN CBG26694
Hgig_03591ALPHA/BETA HYDROLASE DOMAIN-CONTAINING PROTEIN
Hgig_03592
Hgig_03593RIBONUCLEASE H1
Hgig_03594
Hgig_03595
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