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_27549ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27550
Hgig_27551ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_27552TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27553PROTEIN CBG27172
Hgig_27554
Hgig_27555
Hgig_27556
Hgig_27557TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27558TRANSPOSABLE ELEMENT-RELATED
Hgig_27559
Hgig_27560ZINC FINGER PROTEIN
Hgig_27561
Hgig_27562
Hgig_27563ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27564KELCH PROTEIN
Hgig_27565
Hgig_27566ZINC FINGER PROTEIN
Hgig_27567
Hgig_27568
Hgig_27569KELCH PROTEIN
Hgig_27570
Hgig_27571POL PROTEIN
Hgig_27572PROTEIN CBG27172
Hgig_27573CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_27574PROTEIN O-LINKED-MANNOSE BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE 1
Hgig_27575
Hgig_27576TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27577
Hgig_27578REVERSE TRANSCRIPTASES
Hgig_27579
Hgig_27580
Hgig_27581
Hgig_27582PROTEIN CBG27172
Hgig_27583
Hgig_27584
Hgig_27585TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27586POL PROTEIN
Hgig_27587TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27588
Hgig_27589
Hgig_27590
Hgig_27591ZINC FINGER PROTEIN
Hgig_27592REVERSE TRANSCRIPTASES
Hgig_27593ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27594
Hgig_27595PROTEIN CBG27172
Hgig_27596TRANSPOSABLE ELEMENT-RELATED
Hgig_27597TRANSPOSASE-RELATED
Hgig_27598REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
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