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_23397
Hgig_23398
Hgig_23399
Hgig_23400
Hgig_23401
Hgig_23402
Hgig_23403
Hgig_23404
Hgig_23405
Hgig_23406UNCHARACTERIZED
Hgig_23407
Hgig_23408
Hgig_23409
Hgig_23410LYSOSOMAL ACID LIPASE-RELATED
Hgig_23411
Hgig_23412
Hgig_23413PR DOMAIN ZINC FINGER PROTEIN
Hgig_23414
Hgig_23415EUKARYOTIC TRANSLATION INITIATION FACTOR 2C
Hgig_23416EUKARYOTIC TRANSLATION INITIATION FACTOR 2C
Hgig_23417
Hgig_23418CYSTEINE-RICH SECRETORY PROTEIN-RELATED
Hgig_23419UNCHARACTERIZED
Hgig_23420UNCHARACTERIZED
Hgig_23421OXYSTEROL-BINDING PROTEIN-RELATED
Hgig_23422
Hgig_23423SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN
Hgig_23424SLIT RELATED LEUCINE-RICH REPEAT NEURONAL PROTEIN
Hgig_23425
Hgig_23426
Hgig_23427TRANSCRIPTION FACTOR SMIF DECAPPING ENZYME DCP1
Hgig_23428
Hgig_23429
Hgig_23430
Hgig_23431
Hgig_23432MYOTONIC DYSTROPHY S/T KINASE-RELATED
Hgig_23433MYOTONIC DYSTROPHY S/T KINASE-RELATED
Hgig_23434
Hgig_23435METALLOPROTEASE
Hgig_23436TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23437
Hgig_23438SYNAPTOPHYSIN
Hgig_23439
Hgig_23440RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE
Hgig_23441
Hgig_23442CELL DIVISION PROTEIN KINASE
Hgig_23443RNA POLYMERASE II TRANSCRIPTIONAL COACTIVATOR
Hgig_23444OVARIAN-SPECIFIC SERINE/THREONINE-PROTEIN KINASE LOK-RELATED
Hgig_23445SUGAR KINASE
Hgig_23446RNA EXONUCLEASE REXO1 / RECO3 FAMILY MEMBER-RELATED
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