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_20797CYCLIC NUCLEOTIDE PHOSPHODIESTERASE
Hgig_20798
Hgig_20799
Hgig_20800PYRAZINAMIDASE/NICOTINAMIDASE
Hgig_20801
Hgig_20802PYRAZINAMIDASE/NICOTINAMIDASE
Hgig_20803
Hgig_20804DEP DOMAIN PROTEIN
Hgig_20805DEP DOMAIN PROTEIN
Hgig_20806
Hgig_20807
Hgig_20808
Hgig_20809RETINOIC ACID INDUCED 1/TRANSCRIPTION FACTOR 20
Hgig_20810
Hgig_20811BASIC HELIX-LOOP-HELIX TRANSCRIPTION FACTOR, TWIST
Hgig_20812PEST PROTEOLYTIC SIGNAL-CONTAINING NUCLEAR PROTEIN
Hgig_20813
Hgig_20814HL01030P-RELATED
Hgig_20815
Hgig_20816
Hgig_20817
Hgig_20818
Hgig_20819
Hgig_20820RETROVIRUS-RELATED POL POLYPROTEIN FROM TRANSPOSON 412-LIKE PROTEIN-RELATED
Hgig_20821
Hgig_20822TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_20823HISTONE H1
Hgig_20824ZINC FINGER MYND DOMAIN-CONTAINING PROTEIN 19
Hgig_20825
Hgig_20826
Hgig_20827
Hgig_20828TGF-BETA FAMILY
Hgig_20829
Hgig_20830
Hgig_20831
Hgig_20832
Hgig_20833NEUROENDOCRINE PROTEIN 7B2
Hgig_20834
Hgig_20835SOLUTE CARRIER FAMILY 25
Hgig_20836
Hgig_20837MITOCHONDRIAL CARRIER HOMOLOG
Hgig_20838P53-INDUCED PROTEIN RELATED
Hgig_20839REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_20840
Hgig_20841SYNTAXIN
Hgig_20842INTEGRIN ALPHA
Hgig_20843
Hgig_20844TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_20845CLEAVAGE AND POLYADENYLATION SPECIFICITY FACTOR FAMILY MEMBER
Hgig_20846RNA-BINDING PROTEIN RELATED
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