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_22247
Hgig_22248
Hgig_22249TRANSFORMING GROWTH FACTOR BETA REGULATED GENE 1
Hgig_22250PR DOMAIN ZINC FINGER PROTEIN
Hgig_22251
Hgig_22252OXIDOREDUCTASE NAD-BINDING DOMAIN-CONTAINING PROTEIN 1
Hgig_22253
Hgig_22254OXIDOREDUCTASE NAD-BINDING DOMAIN-CONTAINING PROTEIN 1
Hgig_22255
Hgig_22256
Hgig_22257DIPHTHAMIDE BIOSYNTHESIS PROTEIN
Hgig_22258
Hgig_22259PHOSPHATIDYLINOSITOL KINASE
Hgig_22260CHARGED MULTIVESICULAR BODY PROTEIN
Hgig_22261WD REPEAT AND HMG-BOX DNA BINDING PROTEIN
Hgig_22262PHOSPHATIDYLINOSITOL KINASE
Hgig_22263DULLARD PROTEIN PHOSPHATASE
Hgig_22264ENDONUCLEASE-RELATED
Hgig_22265HCLS1-ASSOCIATED PROTEIN X-1
Hgig_22266THIOREDOXIN-LIKE PROTEN 4A, 4B
Hgig_22267DENN DOMAIN-CONTAINING PROTEIN 4
Hgig_22268THIOREDOXIN-LIKE PROTEN 4A, 4B
Hgig_22269HCLS1-ASSOCIATED PROTEIN X-1
Hgig_22270
Hgig_22271
Hgig_22272
Hgig_22273
Hgig_22274
Hgig_22275REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_22276
Hgig_22277POLYCOMB GROUP PROTEIN
Hgig_22278
Hgig_22279
Hgig_22280
Hgig_22281INTEGRIN ALPHA
Hgig_22282INTEGRIN ALPHA
Hgig_22283INTEGRIN ALPHA
Hgig_22284
Hgig_22285INTEGRIN ALPHA
Hgig_22286TUDOR DOMAIN CONTAINING PROTEIN
Hgig_22287EXOCYST COMPLEX COMPONENT SEC5
Hgig_22288G PATCH DOMAIN-CONTAINING PROTEIN 1
Hgig_22289MONOCARBOXYLATE TRANSPORTER
Hgig_22290C2 DOMAIN-CONTAINING PROTEIN 5
Hgig_22291REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_22292TRANSPOSABLE ELEMENT-RELATED
Hgig_22293HISTONE H3 METHYLTRANSFERASE
Hgig_22294GAMMA GLUTAMYL TRANSPEPTIDASE
Hgig_22295MONOCARBOXYLATE TRANSPORTER
Hgig_22296MONOCARBOXYLATE TRANSPORTER
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