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_18747OLFACTOMEDIN-RELATED
Hgig_18748CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_18749
Hgig_18750OLFACTOMEDIN-RELATED
Hgig_18751OLFACTOMEDIN-RELATED
Hgig_18752
Hgig_18753EXONUCLEASE, PHAGE-TYPE/RECB, C-TERMINAL DOMAIN-CONTAINING PROTEIN
Hgig_18754
Hgig_18755
Hgig_18756TRANSPOSON
Hgig_18757
Hgig_18758
Hgig_18759
Hgig_18760BETA-HEXOSAMINIDASE
Hgig_18761REVERSE TRANSCRIPTASE
Hgig_18762BETA-HEXOSAMINIDASE
Hgig_18763REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_18764CILIA AND FLAGELLA-ASSOCIATED PROTEIN 58-RELATED
Hgig_18765BUD13 HOMOLOG
Hgig_18766MAESTRO-RELATED HEAT DOMAIN-CONTAINING
Hgig_18767MAESTRO-RELATED HEAT DOMAIN-CONTAINING
Hgig_18768RAD25/XP-B DNA REPAIR HELICASE
Hgig_18769RAD25/XP-B DNA REPAIR HELICASE
Hgig_18770
Hgig_18771G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_18772ACROSIN-RELATED
Hgig_18773G-PROTEIN COUPLED RECEPTOR B0563.6-LIKE PROTEIN-RELATED
Hgig_18774ACROSIN-RELATED
Hgig_18775ACROSIN-RELATED
Hgig_18776ACROSIN-RELATED
Hgig_18777ACROSIN-RELATED
Hgig_18778
Hgig_18779UNCHARACTERIZED
Hgig_18780
Hgig_18781PHOSPHATIDYLINOSITOL KINASE
Hgig_18782
Hgig_18783
Hgig_18784PDF RECEPTOR-LIKE PROTEIN-RELATED
Hgig_18785PDF RECEPTOR-LIKE PROTEIN-RELATED
Hgig_18786
Hgig_18787DEOXYRIBONUCLEASE
Hgig_18788CARBOXYLESTERASE
Hgig_18789GAMMA-SECRETASE-ACTIVATING PROTEIN
Hgig_18790GAMMA-SECRETASE-ACTIVATING PROTEIN
Hgig_18791-
Hgig_18792ACROSIN-RELATED
Hgig_18793ACROSIN-RELATED
Hgig_18794RFX TRANSCRIPTION FACTOR FAMILY
Hgig_18795BNIP - RELATED
Hgig_18796
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