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_00696
Hgig_00697
Hgig_00698E3 UBIQUITIN-PROTEIN LIGASE MARCH5
Hgig_00699E3 UBIQUITIN-PROTEIN LIGASE MARCH5
Hgig_00700
Hgig_00701
Hgig_00702
Hgig_00703AMINOACYLASE-1
Hgig_00704CLASP
Hgig_00705
Hgig_00706CLASP
Hgig_00707
Hgig_00708
Hgig_00709CLASP
Hgig_00710PROTEIN CBG27172
Hgig_00711UNCHARACTERIZED
Hgig_00712REVERSE TRANSCRIPTASES
Hgig_00713
Hgig_00714SHORT-CHAIN DEHYDROGENASE/REDUCTASE FAMILY 9C
Hgig_00715
Hgig_00716
Hgig_00717METHYLTRANSFERASE N6AMT1
Hgig_00718SINGLE-STRAND SELECTIVE MONOFUNCTIONAL URACIL DNA GLYCOSYLASE
Hgig_00719CELL DIVISION CYCLE AND APOPTOSIS REGULATOR PROTEIN
Hgig_00720
Hgig_00721MARGINAL ZONE B- AND B1-CELL-SPECIFIC PROTEIN
Hgig_00722WD40 REPEAT FAMILY
Hgig_00723U4/U6-ASSOCIATED RNA SPLICING FACTOR-RELATED
Hgig_00724ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_00725ZETA-COAT PROTEIN
Hgig_00726ARGININE/DIAMINOPIMELATE/ORNITHINE DECARBOXYLASE
Hgig_00727REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_00728TETRATRICOPEPTIDE REPEAT PROTEIN 11 TPR REPEAT PROTEIN 11
Hgig_00729
Hgig_00730
Hgig_00731
Hgig_00732
Hgig_00733REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_00734
Hgig_00735PLACENTAL PROTEIN 6
Hgig_00736THROMBOSPONDIN
Hgig_00737FERRITIN
Hgig_00738CYCLIC NUCLEOTIDE PHOSPHODIESTERASE
Hgig_00739
Hgig_00740-
Hgig_00741SPORE COAT PROTEIN SP85
Hgig_00742CELL GROWTH-REGULATING NUCLEOLAR PROTEIN LYAR
Hgig_00743
Hgig_00744
Hgig_00745
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