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_05946
Hgig_05947UNCHARACTERIZED
Hgig_05948
Hgig_05949MICOS COMPLEX SUBUNIT MIC13
Hgig_05950U3 SMALL NUCLEOLAR RNA-ASSOCIATED PROTEIN 14
Hgig_05951
Hgig_05952TOL-PAL SYSTEM PROTEIN TOLA
Hgig_05953REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_05954STRUCTURAL MAINTENANCE OF CHROMOSOMES PROTEIN 3
Hgig_05955ADENYLATE CYCLASE TYPE 1
Hgig_05956ADENYLATE CYCLASE TYPE 1
Hgig_05957STEROIDOGENIC ACUTE REGULATORY PROTEIN-LIKE
Hgig_05958PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_05959SMALL NUCLEAR RIBONUCLEOPROTEIN-ASSOCIATED PROTEIN B AND N
Hgig_05960SMALL NUCLEAR RIBONUCLEOPROTEIN-ASSOCIATED PROTEIN B AND N
Hgig_05961SERINE/THREONINE-PROTEIN KINASE
Hgig_05962
Hgig_05963
Hgig_05964U5 SMALL NUCLEAR RIBONUCLEOPROTEIN 40 KDA PROTEIN
Hgig_05965RGPR-RELATED
Hgig_05966SEGMENT POLARITY PROTEIN DISHEVELLED
Hgig_05967
Hgig_05968HEAT SHOCK PROTEIN HSP-12.2-RELATED
Hgig_05969HEAT SHOCK PROTEIN HSP-12.2-RELATED
Hgig_05970TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_05971ANK_REP_REGION DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_05972OXIDASE/PEROXIDASE
Hgig_05973SET AND MYND DOMAIN-CONTAINING PROTEIN 4
Hgig_05974G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_05975
Hgig_05976SEGMENT POLARITY PROTEIN DISHEVELLED
Hgig_05977DUF4793 DOMAIN-CONTAINING PROTEIN
Hgig_05978
Hgig_05979DUF4793 DOMAIN-CONTAINING PROTEIN
Hgig_05980
Hgig_05981TYROSINE-PROTEIN KINASE
Hgig_05982UNCHARACTERIZED
Hgig_05983
Hgig_05984ACYL-COENZYME A THIOESTERASE-RELATED
Hgig_05985
Hgig_05986RECEPTOR-TYPE TYROSINE-PROTEIN PHOSPHATASE
Hgig_05987ACYL-COENZYME A THIOESTERASE-RELATED
Hgig_05988SYNAPTONEMAL COMPLEX PROTEIN-RELATED
Hgig_05989
Hgig_05990OTU DOMAIN CONTAINING PROTEIN
Hgig_05991TRANSPOSABLE ELEMENT-RELATED
Hgig_05992REVERSE TRANSCRIPTASE
Hgig_05993
Hgig_05994PROTEIN C10
Hgig_05995
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