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_18847
Hgig_18848TRANSPOSASE-RELATED
Hgig_18849
Hgig_18850
Hgig_18851
Hgig_18852
Hgig_18853PROTEIN CBG27172
Hgig_18854
Hgig_18855NUCLEOLAR PROTEIN 8
Hgig_18856
Hgig_18857
Hgig_18858
Hgig_18859
Hgig_18860
Hgig_18861
Hgig_18862TRANSPOSABLE ELEMENT-RELATED
Hgig_18863
Hgig_18864N-TERMINAL ASPARAGINE AMIDOHYDROLASE
Hgig_18865POL PROTEIN
Hgig_18866ENDONUCLEASE-RELATED
Hgig_18867
Hgig_18868
Hgig_18869
Hgig_18870SIDESTEP PROTEIN
Hgig_18871REVERSE TRANSCRIPTASE
Hgig_18872
Hgig_18873REVERSE TRANSCRIPTASE
Hgig_18874PROTEIN SIDEKICK
Hgig_18875REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_18876REVERSE TRANSCRIPTASE
Hgig_18877PROTEIN SIDEKICK
Hgig_18878
Hgig_18879
Hgig_18880
Hgig_18881
Hgig_18882
Hgig_18883
Hgig_18884
Hgig_18885
Hgig_18886IONOTROPIC RECEPTOR 20A-RELATED
Hgig_18887G-PROTEIN COUPLED RECEPTOR
Hgig_18888CALPAIN-7
Hgig_18889ACETOACETYL-COA SYNTHETASE
Hgig_18890ACETOACETYL-COA SYNTHETASE
Hgig_18891CNH DOMAIN CONTAINING
Hgig_18892CALPAIN-7
Hgig_18893
Hgig_18894
Hgig_18895
Hgig_18896
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