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_04696POLYCYSTIN FAMILY MEMBER
Hgig_04697POLYCYSTIN FAMILY MEMBER
Hgig_04698
Hgig_04699VITELLOGENIN-RELATED
Hgig_04700
Hgig_04701
Hgig_04702
Hgig_04703VITELLOGENIN-RELATED
Hgig_04704
Hgig_04705STRUCTURAL CONTITUENT OF CUTICLE
Hgig_04706
Hgig_04707
Hgig_04708
Hgig_04709
Hgig_04710
Hgig_04711REVERSE TRANSCRIPTASE
Hgig_04712SERINE PROTEASE-RELATED
Hgig_04713INOSINE-5-MONOPHOSPHATE DEHYDROGENASE RELATED
Hgig_04714INOSINE-5-MONOPHOSPHATE DEHYDROGENASE RELATED
Hgig_04715INOSINE-5-MONOPHOSPHATE DEHYDROGENASE RELATED
Hgig_04716THIOSULFATE SULFURTRANSFERASE RDL2, MITOCHONDRIAL-RELATED
Hgig_04717PROTEIN CBG27172
Hgig_04718PROTEIN LYSINE HYDROXYLATION COMPLEX COMPONENT
Hgig_04719
Hgig_04720TRANSLIN AND TRANSLIN ASSOCIATED PROTEIN X
Hgig_04721
Hgig_04722FACIOGENITAL DYSPLASIA PROTEIN
Hgig_04723
Hgig_04724
Hgig_04725
Hgig_04726OVOCHYMASE-RELATED
Hgig_04727
Hgig_04728ALPHA-/EPSILON-SARCOGLYCAN FAMILY MEMBER
Hgig_04729
Hgig_04730UNCHARACTERIZED
Hgig_04731
Hgig_04732
Hgig_04733
Hgig_04734
Hgig_04735LIM DOMAIN-CONTAINING PROTEIN
Hgig_04736EF-HAND DOMAIN C-TERMINAL CONTAINING PROTEIN
Hgig_04737LEUKOCYTE RECEPTOR CLUSTER LRC MEMBER 1
Hgig_04738TRAFFICKING KINESIN-BINDING PROTEIN
Hgig_04739
Hgig_04740
Hgig_04741
Hgig_04742RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_04743PR DOMAIN ZINC FINGER PROTEIN
Hgig_04744GTPASE ERA
Hgig_04745SPERMATOGENESIS-ASSOCIATED PROTEIN 2/TAMOZHENNIC
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