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_21697MICROSOMAL SIGNAL PEPTIDASE 23 KD SUBUNIT SPC22/23
Hgig_21698NICOTINAMIDE MONONUCLEOTIDE ADENYLYLTRANSFERASE
Hgig_21699SMALL NUCLEAR RIBONUCLEOPROTEIN
Hgig_21700
Hgig_21701
Hgig_21702UNCHARACTERIZED
Hgig_21703
Hgig_21704
Hgig_21705PHOSPHATIDYLINOSITOL KINASE
Hgig_21706
Hgig_21707
Hgig_21708TUMOR ENDOTHELIAL MARKER 7 RELATED
Hgig_21709SEPTIN
Hgig_21710
Hgig_21711DYNEIN INTERMEDIATE CHAIN
Hgig_21712-
Hgig_21713UNCHARACTERIZED
Hgig_21714-
Hgig_21715
Hgig_21716
Hgig_21717
Hgig_21718BTB DOMAIN TRANSCRIPTION FACTOR
Hgig_21719
Hgig_21720LIM DOMAIN KINASE 1
Hgig_21721
Hgig_21722
Hgig_21723ATP-DEPENDENT DNA HELICASE
Hgig_21724
Hgig_21725D-GLUCURONYL C5-EPIMERASE
Hgig_21726D-GLUCURONYL C5-EPIMERASE
Hgig_21727M-PHASE PHOSPHOPROTEIN 6
Hgig_21728
Hgig_21729
Hgig_21730
Hgig_21731TETRATRICOPEPTIDE REPEAT PROTEIN 32
Hgig_21732CADHERIN DOMAIN-CONTAINING PROTEIN
Hgig_21733T-COMPLEX-ASSOCIATED-TESTIS-EXPRESSED 1/ DYNEIN LIGHT CHAIN
Hgig_21734
Hgig_21735
Hgig_21736
Hgig_21737UNCHARACTERIZED
Hgig_21738UNCHARACTERIZED
Hgig_21739
Hgig_21740
Hgig_21741
Hgig_21742E3 UBIQUITIN-PROTEIN LIGASE PRAJA
Hgig_21743TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_21744
Hgig_21745E3 UBIQUITIN-PROTEIN LIGASE RNF180
Hgig_21746
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