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_21897
Hgig_21898UNCHARACTERIZED
Hgig_21899
Hgig_21900GALACTOSIDE 2-L-FUCOSYLTRANSFERASE
Hgig_21901
Hgig_21902AGAP008170-PA
Hgig_21903E3 UBIQUITIN-PROTEIN LIGASE TRIM
Hgig_21904FASTING-INDUCIBLE INTEGRAL MEMBRANE PROTEIN TM6P1-RELATED
Hgig_21905
Hgig_21906PROTEIN CBG27172
Hgig_21907PEPTIDYL-TRNA HYDROLASE 2
Hgig_21908PORCUPINE
Hgig_21909
Hgig_21910
Hgig_21911ALPHA-MANNOSIDASE
Hgig_21912SPARC OSTEONECTIN
Hgig_21913
Hgig_21914UBIQUITIN-ACTIVATING ENZYME E1
Hgig_21915
Hgig_21916TRANSMEMBRANE PROTEASE SERINE
Hgig_21917GLUTATHIONE PEROXIDASE
Hgig_21918CRUMBS FAMILY MEMBER
Hgig_21919REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_21920
Hgig_21921
Hgig_21922TYROSINE-PROTEIN KINASE
Hgig_21923
Hgig_21924CONNECTIVE TISSUE GROWTH FACTOR-RELATED
Hgig_21925CONNECTIVE TISSUE GROWTH FACTOR-RELATED
Hgig_21926
Hgig_21927
Hgig_21928DNA-DIRECTED RNA POLYMERASE III
Hgig_21929
Hgig_21930
Hgig_21931
Hgig_21932TETRASPANIN
Hgig_21933PHOSPHOLIPASE D - RELATED
Hgig_21934PHOSPHOLIPASE D - RELATED
Hgig_21935DNA REPAIR PROTEIN RAD51 HOMOLOG 4
Hgig_21936NUCLEOLAR PRERIBOSOMAL-ASSOCIATED PROTEIN 1
Hgig_21937
Hgig_21938
Hgig_21939
Hgig_21940SI:CH211-201H21.5-RELATED
Hgig_21941
Hgig_21942STABILIZER OF AXONEMAL MICROTUBULES 2
Hgig_21943
Hgig_21944COMPLEMENT COMPONENT 1
Hgig_21945UNCHARACTERIZED
Hgig_21946
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