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_02596
Hgig_02597BAT4 PROTEIN-RELATED
Hgig_02598BTB DOMAIN TRANSCRIPTION FACTOR
Hgig_02599RUS1 FAMILY PROTEIN C16ORF58
Hgig_02600UNCHARACTERIZED
Hgig_02601SIGNAL PEPTIDE PEPTIDASE
Hgig_02602
Hgig_02603CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_02604PEPTIDASE S9 PROLYL OLIGOPEPTIDASE
Hgig_02605
Hgig_02606
Hgig_02607PEPTIDASE S9 PROLYL OLIGOPEPTIDASE
Hgig_02608CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_02609TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_02610
Hgig_02611UNCHARACTERIZED
Hgig_02612
Hgig_02613
Hgig_02614CYCLIC NUCLEOTIDE PHOSPHODIESTERASE
Hgig_02615
Hgig_02616
Hgig_02617PHD FINGER TRANSCRIPTION FACTOR
Hgig_02618TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_02619
Hgig_02620AAA-FAMILY ATPASE
Hgig_02621LIPID PHOSPHATE PHOSPHATASE
Hgig_02622LIPID PHOSPHATE PHOSPHATASE
Hgig_02623BTB DOMAIN TRANSCRIPTION FACTOR
Hgig_02624OTU DOMAIN CONTAINING PROTEIN
Hgig_02625NAD DEPENDENT EPIMERASE/DEHYDRATASE
Hgig_02626PENTATRICOPEPTIDE REPEAT-CONTAINING PROTEIN 2, MITOCHONDRIAL
Hgig_02627
Hgig_02628
Hgig_02629
Hgig_02630PROTEIN CBG27172
Hgig_02631
Hgig_02632
Hgig_02633ALPHA-N-ACETYLGLUCOSAMINIDASE
Hgig_02634ALPHA-N-ACETYLGLUCOSAMINIDASE
Hgig_02635ALPHA-N-ACETYLGLUCOSAMINIDASE
Hgig_02636ALPHA-N-ACETYLGLUCOSAMINIDASE
Hgig_02637
Hgig_02638MITOCHONDRIAL 28S RIBOSOMAL PROTEIN S24
Hgig_02639SUGAR NUCLEOTIDE EPIMERASE RELATED
Hgig_02640RIBONUCLEOPROTEIN RB97D
Hgig_02641ORF PROTEIN-RELATED
Hgig_02642
Hgig_02643RIBOSOMAL PROTEIN L5-RELATED
Hgig_02644
Hgig_02645SERINE/THREONINE-PROTEIN PHOSPHATASE 5-RELATED
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