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_04946
Hgig_04947ANDROGEN-INDUCED PROTEIN 1-RELATED
Hgig_04948TRNA N6-ADENOSINE THREONYLCARBAMOYLTRANSFERASE
Hgig_04949TRNA N6-ADENOSINE THREONYLCARBAMOYLTRANSFERASE
Hgig_04950E3 UBIQUITIN-PROTEIN LIGASE TRIM
Hgig_04951
Hgig_04952SAND PROTEIN-RELATED
Hgig_04953EXPORTIN-6
Hgig_04954ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_04955CALICYLIN BINDING PROTEIN
Hgig_04956PROTEIN CBG26694
Hgig_04957
Hgig_04958
Hgig_04959E3 UBIQUITIN-PROTEIN LIGASE TRAIP
Hgig_04960
Hgig_04961
Hgig_04962
Hgig_04963SIGNAL TRANSDUCER AND ACTIVATOR OF TRANSCRIPTION
Hgig_04964
Hgig_04965CALICYLIN BINDING PROTEIN
Hgig_04966ADENYLYL CYCLASE-ASSOCIATED PROTEIN
Hgig_04967PROTEIN STAR
Hgig_04968ADENYLYL CYCLASE-ASSOCIATED PROTEIN
Hgig_04969REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_04970
Hgig_0497140S RIBOSOMAL PROTEIN S29
Hgig_04972
Hgig_04973
Hgig_04974SPROUTY-RELATED, EVH1 DOMAIN-CONTAINING PROTEIN FAMILY MEMBER
Hgig_04975
Hgig_04976
Hgig_04977TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_04978
Hgig_04979
Hgig_04980TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_04981
Hgig_04982
Hgig_04983
Hgig_04984
Hgig_04985UNCHARACTERIZED
Hgig_04986N-ACYLNEURAMINATE-9-PHOSPHATASE
Hgig_04987G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_04988
Hgig_04989G-PROTEIN COUPLED RECEPTOR MTH-LIKE 1-RELATED
Hgig_04990UNCHARACTERIZED
Hgig_04991
Hgig_04992
Hgig_04993UNCHARACTERIZED
Hgig_04994LATE ENDOSOMAL/LYSOSOMAL MP1 INTERACTING PROTEIN
Hgig_04995BTB DOMAIN TRANSCRIPTION FACTOR
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