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_23897UBIQUITIN-ACTIVATING ENZYME E1
Hgig_23898FIBRINOGEN/TENASCIN/ANGIOPOEITIN
Hgig_23899CYSTATIN
Hgig_23900DEAD/H BOX POLYPEPTIDE 26/DICE1-RELATED
Hgig_23901LD15586P
Hgig_23902ALPHA-AMINOADIPIC SEMIALDEHYDE DEHYDROGENASE
Hgig_23903G PATCH DOMAIN CONTAINING PROTEIN
Hgig_23904NUCLEOLAR GTP-BINDING PROTEIN 1
Hgig_23905SERINE/THREONINE-PROTEIN KINASE PLK
Hgig_23906
Hgig_23907
Hgig_23908CYTOCHROME P450
Hgig_23909PROTEIN BNI1
Hgig_23910RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_23911TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23912RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_23913
Hgig_23914RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_23915RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_23916RIBOSOMAL PROTEIN S6 KINASE
Hgig_23917RHO GUANINE EXCHANGE FACTOR-RELATED
Hgig_23918RIBOSOMAL PROTEIN S6 KINASE
Hgig_23919AMP DEAMINASE
Hgig_23920AMP DEAMINASE
Hgig_23921AMP DEAMINASE
Hgig_23922
Hgig_23923PHD AND RING FINGER DOMAIN-CONTAINING PROTEIN 1
Hgig_23924
Hgig_23925
Hgig_23926ANGIOTENSIN-CONVERTING ENZYME
Hgig_23927ARGININE/SERINE-RICH PROTEIN PNISR
Hgig_23928METHYLTRANSF_11 DOMAIN-CONTAINING PROTEIN
Hgig_23929
Hgig_23930SPECTRIN/FILAMIN RELATED CYTOSKELETAL PROTEIN
Hgig_23931
Hgig_23932CYTOCHROME P450
Hgig_23933RIBOSOMAL PROTEIN S6 KINASE
Hgig_23934HISTONE H3
Hgig_23935HISTONE H3
Hgig_23936HISTONE H2A
Hgig_23937HISTONE H3
Hgig_23938HISTONE H2A
Hgig_23939HISTONE H2A
Hgig_23940HISTONE H3
Hgig_23941HISTONE H2A
Hgig_23942HISTONE H3
Hgig_23943HISTONE H2A
Hgig_23944HISTONE H3
Hgig_23945HISTONE H2A
Hgig_23946HISTONE H2B
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