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_19047UNCHARACTERIZED
Hgig_19048VERY-LONG-CHAIN (3R)-3-HYDROXYACYL-COA DEHYDRATASE
Hgig_1904930S RIBOSOMAL PROTEIN S12 FAMILY MEMBER
Hgig_19050RHO FAMILY GTPASE
Hgig_19051DNA-DIRECTED RNA POLYMERASE
Hgig_19052FI01434P-RELATED
Hgig_19053TRANSPOSABLE ELEMENT-RELATED
Hgig_19054METABOTROPIC GLUTAMATE RECEPTOR
Hgig_19055POTASSIUM CHANNEL, SUBFAMILY K
Hgig_19056
Hgig_1905760S RIBOSOMAL PROTEIN L7
Hgig_19058
Hgig_19059UNCHARACTERIZED
Hgig_19060UNCHARACTERIZED
Hgig_19061PROTEIN CBG27172
Hgig_19062
Hgig_19063
Hgig_19064SODIUM/HYDROGEN EXCHANGER
Hgig_19065
Hgig_19066
Hgig_19067
Hgig_19068PROTEIN ABHD18
Hgig_19069TRANSPOSABLE ELEMENT-RELATED
Hgig_19070NEDD4-BINDING PROTEIN 2
Hgig_19071
Hgig_19072
Hgig_19073
Hgig_19074
Hgig_19075
Hgig_19076SERINE-THREONINE PROTEIN KINASE
Hgig_19077MINA53 MYC INDUCED NUCLEAR ANTIGEN
Hgig_19078MINA53 MYC INDUCED NUCLEAR ANTIGEN
Hgig_19079
Hgig_19080
Hgig_19081
Hgig_19082PROPROTEIN CONVERTASE SUBTILISIN/KEXIN-RELATED
Hgig_19083
Hgig_19084
Hgig_19085MASK PROTEIN
Hgig_19086
Hgig_19087-
Hgig_19088CARBON CATABOLITE REPRESSOR PROTEIN 4
Hgig_19089
Hgig_19090METHYLTRANSFERASE-LIKE PROTEIN 24
Hgig_19091DYNEIN REGULATORY COMPLEX SUBUNIT 7
Hgig_19092FI04035P
Hgig_19093ZINC FINGER PROTEIN
Hgig_19094DEATH DOMAIN-CONTAINING PROTEIN
Hgig_19095
Hgig_19096DNA-DIRECTED RNA POLYMERASE
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