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_03496
Hgig_03497
Hgig_03498
Hgig_03499INTERLEUKIN-1 RECEPTOR FAMILY MEMBER
Hgig_03500SIDESTEP PROTEIN
Hgig_03501REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_03502
Hgig_03503SMALL SEVEN TRANSMEMBRANE DOMAIN-CONTAINING PROTEIN
Hgig_03504REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_03505MYELIN PROTEOLIPID
Hgig_03506
Hgig_03507EUKARYOTIC TRANSLATION INITIATION FACTOR 2-ALPHA KINASE EIF2-ALPHA KINASE -RELATED
Hgig_03508REVERSE TRANSCRIPTASE
Hgig_03509
Hgig_03510
Hgig_03511
Hgig_03512
Hgig_03513TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_03514
Hgig_03515
Hgig_03516
Hgig_03517
Hgig_03518
Hgig_03519
Hgig_03520
Hgig_03521
Hgig_03522TRANSPOSABLE ELEMENT-RELATED
Hgig_03523
Hgig_03524
Hgig_03525
Hgig_03526
Hgig_03527
Hgig_03528
Hgig_03529NUCLEAR HORMONE RECEPTOR
Hgig_03530NUCLEAR HORMONE RECEPTOR
Hgig_03531NUCLEAR HORMONE RECEPTOR
Hgig_03532
Hgig_03533
Hgig_03534
Hgig_03535
Hgig_03536
Hgig_03537
Hgig_03538
Hgig_03539NUCLEAR HORMONE RECEPTOR
Hgig_03540REVERSE TRANSCRIPTASES
Hgig_03541OSJNBA0013A04.12 PROTEIN
Hgig_03542
Hgig_03543
Hgig_03544
Hgig_03545
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