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_08047GTP-BINDING PROTEIN ALPHA SUBUNIT
Hgig_08048CASPASE RECRUITMENT DOMAIN-CONTAINING PROTEIN 18
Hgig_08049PROTEASE FAMILY M14 CARBOXYPEPTIDASE A,B
Hgig_08050CASPASE RECRUITMENT DOMAIN-CONTAINING PROTEIN 18
Hgig_08051
Hgig_08052CUTICLE PROTEIN
Hgig_08053CUTICLE PROTEIN
Hgig_08054CUTICLE PROTEIN
Hgig_08055CUTICLE PROTEIN
Hgig_08056CUTICLE PROTEIN
Hgig_08057EGF-LIKE-DOMAIN, MULTIPLE 7, 8
Hgig_08058PROTEIN YIPPEE-LIKE CG15309-RELATED
Hgig_08059
Hgig_08060SMALL NUCLEAR RIBONUCLEOPROTEIN SM
Hgig_08061PHD FINGER PROTEIN 12
Hgig_08062TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_08063PEPTIDYL-PROLYL CIS-TRANS ISOMERASE-RELATED
Hgig_08064
Hgig_08065SERINE/THREONINE-PROTEIN KINASE
Hgig_08066ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_08067
Hgig_08068PATCHED-RELATED
Hgig_08069STROMAL CELL-DERIVED FACTOR 2-LIKE PROTEIN
Hgig_08070CONTACTIN 5
Hgig_08071REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_08072
Hgig_08073DDE_TNP_1_7 DOMAIN-CONTAINING PROTEIN
Hgig_08074
Hgig_08075
Hgig_08076
Hgig_08077
Hgig_08078EXODEOXYRIBONUCLEASE III
Hgig_08079
Hgig_08080MARINER MOS1 TRANSPOSASE-LIKE PROTEIN
Hgig_08081
Hgig_08082BETA-AMYLOID BINDING PROTEIN-RELATED
Hgig_08083
Hgig_08084JITTERBUG, ISOFORM N
Hgig_08085ADAMTS A DISINTEGRIN AND METALLOPROTEASE WITH THROMBOSPONDIN MOTIFS PROTEASE
Hgig_08086PROTEIN CBG27172
Hgig_08087PROTEIN CBG27172
Hgig_08088TRYPSIN-RELATED
Hgig_08089TRANSMEMBRANE PROTEIN INDUCED BY TUMOR NECROSIS FACTOR ALPHA
Hgig_08090C3ORF1 PROTEIN-RELATED
Hgig_08091E3 UBIQUITIN-PROTEIN LIGASE RNF26
Hgig_08092
Hgig_08093ANTIGEN BSP, PUTATIVE-RELATED
Hgig_08094WD REPEAT-CONTAINING PROTEIN 61
Hgig_08095CHLORIDE CONDUCTANCE REGULATORY PROTEIN ICLN
Hgig_08096
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