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_24047PROTEIN CBG26694
Hgig_24048ENDONUCLEASE
Hgig_24049ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_24050
Hgig_24051
Hgig_24052B2 BRADYKININ RECEPTOR/ANGIOTENSIN II RECEPTOR
Hgig_24053G-PROTEIN COUPLED RECEPTOR
Hgig_24054CELL DIVISION PROTEIN KINASE
Hgig_24055REVERSE TRANSCRIPTASES
Hgig_24056PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_24057HISTONE H2A
Hgig_24058HISTONE H3
Hgig_24059HISTONE H3
Hgig_24060HISTONE H2B
Hgig_24061
Hgig_24062INOSITOL 5-PHOSPHATASE
Hgig_24063LIM DOMAIN ONLY 7
Hgig_24064
Hgig_24065LONGEVITY ASSURANCE FACTOR 1 LAG1
Hgig_24066HISTONE DEACETYLASE HDAC1-RELATED
Hgig_24067
Hgig_24068HISTONE DEACETYLASE-LIKE PROTEIN
Hgig_24069
Hgig_24070
Hgig_24071
Hgig_24072
Hgig_24073
Hgig_24074
Hgig_24075
Hgig_24076
Hgig_24077LIPASE
Hgig_24078
Hgig_24079
Hgig_24080
Hgig_24081UBIQUITIN-LIKE-CONJUGATING ENZYME ATG10
Hgig_24082
Hgig_24083
Hgig_24084TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_24085LD15586P
Hgig_24086EUKARYOTIC TRANSLATION INITIATION FACTOR 2A
Hgig_24087
Hgig_24088STRUCTURAL CONTITUENT OF CUTICLE
Hgig_24089STRUCTURAL CONTITUENT OF CUTICLE
Hgig_24090
Hgig_24091
Hgig_24092
Hgig_24093FAT ATYPICAL CADHERIN-RELATED
Hgig_24094TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_24095
Hgig_24096ATP-DEPENDENT RNA HELICASE DBP3
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