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_04396GLYCINE-, GLUTAMATE-, THIENYLCYCLOHEXYLPIPERIDINE-BINDING PROTEIN
Hgig_04397RAB3 GTPASE-ACTIVATING PROTEIN CATALYTIC SUBUNIT
Hgig_04398RAB3 GTPASE-ACTIVATING PROTEIN CATALYTIC SUBUNIT
Hgig_04399PHD FINGER PROTEIN
Hgig_04400ALANINE AMINOTRANSFERASE
Hgig_04401ALANINE AMINOTRANSFERASE
Hgig_04402
Hgig_04403FUKUTIN RELATED PROTEIN
Hgig_04404SYNAPSE-ASSOCIATED PROTEIN
Hgig_04405
Hgig_04406REVERSE TRANSCRIPTASE
Hgig_04407TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_04408
Hgig_04409
Hgig_04410
Hgig_04411
Hgig_04412UNCHARACTERIZED
Hgig_04413EXPORTIN 4,7-RELATED
Hgig_04414RHO GUANINE NUCLEOTIDE EXCHANGE FACTOR-RELATED
Hgig_04415REVERSE TRANSCRIPTASE
Hgig_04416
Hgig_04417
Hgig_04418
Hgig_04419
Hgig_04420EUKARYOTIC TRANSLATION INITIATION FACTOR 4 GAMMA
Hgig_04421
Hgig_04422
Hgig_04423WD REPEAT-CONTAINING PROTEIN 55
Hgig_04424ALPHA- 1,6 -FUCOSYLTRANSFERASE
Hgig_04425
Hgig_04426SH2-SH3 ADAPTOR PROTEIN-RELATED
Hgig_04427REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_04428
Hgig_04429CHLORIDE CHANNEL PROTEIN 2
Hgig_04430
Hgig_04431
Hgig_04432
Hgig_04433POLYSERASE-RELATED
Hgig_04434
Hgig_04435
Hgig_04436TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_04437-
Hgig_04438PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_04439
Hgig_04440
Hgig_04441
Hgig_04442
Hgig_04443ZINC FINGER CCHC DOMAIN CONTAINING PROTEIN
Hgig_04444
Hgig_04445DNA-DIRECTED RNA POLYMERASE II
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