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_26499PARTNER OF XRN-2 PROTEIN 1
Hgig_26500
Hgig_26501CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_26502BAX INHIBITOR-RELATED
Hgig_26503TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_26504RIBOSOMAL PROTEIN L5-RELATED
Hgig_26505
Hgig_26506
Hgig_26507
Hgig_26508IMPORTIN-7, 8, 11
Hgig_26509TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_26510
Hgig_2651160S RIBOSOMAL PROTEIN L23A
Hgig_26512
Hgig_26513
Hgig_26514
Hgig_26515
Hgig_26516REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_26517
Hgig_26518DRONGO, ISOFORM F
Hgig_26519
Hgig_26520UNCHARACTERIZED
Hgig_26521E3 UBIQUITIN-PROTEIN LIGASE TRIM
Hgig_26522
Hgig_26523REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_26524
Hgig_26525ACROSIN-RELATED
Hgig_26526
Hgig_26527
Hgig_26528DIVALENT CATION TOLERANCE CUTA-RELATED
Hgig_26529PROTEIN CBG27172
Hgig_26530ADENOSINE DEAMINASE
Hgig_26531TESTOSTERONE-REGULATED PROTEIN RP2
Hgig_26532
Hgig_26533MYOTUBULARIN-RELATED
Hgig_26534MYOTUBULARIN-RELATED
Hgig_26535MYOTUBULARIN-RELATED
Hgig_26536
Hgig_26537RASSF
Hgig_26538
Hgig_26539
Hgig_26540ACETYL-COA C-ACYLTRANSFERASE
Hgig_26541REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_26542RIBOSOMAL PROTEIN L5-RELATED
Hgig_26543ENDONUCLEASE
Hgig_26544
Hgig_26545GLUCOSE-METHANOL-CHOLINE GMC OXIDOREDUCTASE
Hgig_26546GLUCOSE-METHANOL-CHOLINE GMC OXIDOREDUCTASE
Hgig_26547
Hgig_26548NAD(P) TRANSHYDROGENASE
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