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_27349
Hgig_27350ZINC FINGER PROTEIN
Hgig_27351
Hgig_27352
Hgig_27353ZINC FINGER PROTEIN
Hgig_27354ZINC FINGER PROTEIN ZIC AND GLI
Hgig_27355
Hgig_27356
Hgig_27357TRANSPOSASE-RELATED
Hgig_27358ZINC FINGER PROTEIN
Hgig_27359
Hgig_27360
Hgig_27361
Hgig_27362
Hgig_27363
Hgig_27364
Hgig_27365ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27366
Hgig_27367
Hgig_27368HAT FAMILY DIMERISATION DOMAINCONTAINING PROTEIN-RELATED
Hgig_27369EXODEOXYRIBONUCLEASE III
Hgig_27370ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_27371
Hgig_27372
Hgig_27373
Hgig_27374
Hgig_27375TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27376TRANSPOSASE-RELATED
Hgig_27377APPLE DOMAIN-CONTAINING PROTEIN
Hgig_27378
Hgig_27379PROTEIN CBG27172
Hgig_27380PROTEIN CBG26694
Hgig_27381REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_27382
Hgig_27383OSJNBA0013A04.12 PROTEIN
Hgig_27384
Hgig_27385
Hgig_27386ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_27387TRANSPOSASE-RELATED
Hgig_27388
Hgig_27389
Hgig_27390
Hgig_27391ZINC FINGER PROTEIN
Hgig_27392
Hgig_27393TRANSPOSABLE ELEMENT-RELATED
Hgig_27394PROTEIN CBG27172
Hgig_27395
Hgig_27396
Hgig_27397
Hgig_27398
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