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_05746MAINTENANCE OF KILLER 16 MAK16 PROTEIN-RELATED
Hgig_05747TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_05748
Hgig_05749D-2-HYDROXYGLUTARATE DEHYDROGENASE, MITOCHONDRIAL
Hgig_05750
Hgig_05751REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_05752
Hgig_05753
Hgig_05754HL07962P-RELATED
Hgig_05755BETA-1,4-GALACTOSYLTRANSFERASE
Hgig_05756RIBOSOMAL PROTEIN S9
Hgig_05757CENTROSOMAL PROTEIN 2
Hgig_05758HL07962P-RELATED
Hgig_05759BTB/POZ DOMAIN-CONTAINING PROTEIN 10-RELATED
Hgig_05760PROTEIN CBG27172
Hgig_05761ENDONUCLEASE RELATED
Hgig_05762UBIQUITIN-CONJUGATING ENZYME E2
Hgig_05763
Hgig_05764DYNEIN HEAVY CHAIN FAMILY PROTEIN
Hgig_05765IRON-SULFUR DOMAIN CONTAINING PROTEIN
Hgig_05766HEME-BINDING MONOOXYGENASE FAMILY
Hgig_05767FIBROBLAST GROWTH FACTOR
Hgig_05768
Hgig_05769
Hgig_05770SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN
Hgig_05771DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_05772
Hgig_05773
Hgig_05774
Hgig_05775RNA_LIG_T4_1 DOMAIN-CONTAINING PROTEIN
Hgig_05776
Hgig_05777
Hgig_05778FRIZZLED
Hgig_05779
Hgig_05780
Hgig_05781
Hgig_05782SPONDIN
Hgig_05783
Hgig_05784AGAP008170-PA
Hgig_05785
Hgig_05786DEHYDROGENASE/REDUCTASE SDR FAMILY MEMBER 12
Hgig_05787
Hgig_05788RNA-BINDING PROTEIN
Hgig_05789
Hgig_05790ENDONUCLEASE
Hgig_05791PERIODIC TRYPTOPHAN PROTEIN 1
Hgig_05792
Hgig_05793
Hgig_05794DNA POLYMERASE TYPE-X FAMILY MEMBER
Hgig_05795LYSINE-SPECIFIC DEMETHYLASE
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