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_18147
Hgig_18148ADRENERGIC RECEPTOR-RELATED G-PROTEIN COUPLED RECEPTOR
Hgig_18149ADRENERGIC RECEPTOR-RELATED G-PROTEIN COUPLED RECEPTOR
Hgig_18150CADHERIN-23
Hgig_18151
Hgig_18152CADHERIN-23
Hgig_18153
Hgig_18154
Hgig_18155ASPARTATEAMMONIA/ARGININOSUCCINATE/ADENYLOSUCCINATE LYASE
Hgig_18156POLYSERASE-RELATED
Hgig_18157FACT COMPLEX SUBUNIT SSRP1
Hgig_18158REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_18159CLATHRIN LIGHT CHAIN
Hgig_18160BESTROPHIN
Hgig_18161ACTIN
Hgig_18162RING FINGER AND SRY DOMAIN-CONTAINING
Hgig_18163TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_18164
Hgig_18165ASPARTATEAMMONIA/ARGININOSUCCINATE/ADENYLOSUCCINATE LYASE
Hgig_18166
Hgig_18167N-ACETYLTRANSFERASE 10
Hgig_18168
Hgig_18169
Hgig_18170
Hgig_18171
Hgig_18172MANNOSE, PHOSPHOLIPASE, LECTIN RECEPTOR RELATED
Hgig_18173
Hgig_18174
Hgig_18175VANG-LIKE PROTEIN
Hgig_18176
Hgig_18177
Hgig_18178MITOCHONDRIAL CARRIER PROTEIN RIM2
Hgig_18179NAD KINASE
Hgig_18180TBC1 DOMAIN FAMILY MEMBER GTPASE-ACTIVATING PROTEIN
Hgig_18181TRANSPOSABLE ELEMENT-RELATED
Hgig_18182
Hgig_18183
Hgig_18184
Hgig_18185
Hgig_18186N6-ADENOSINE-METHYLTRANSFERASE NON-CATALYTIC SUBUNIT
Hgig_18187
Hgig_18188PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_18189PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_18190PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_18191INNEXIN
Hgig_18192
Hgig_18193DEPHOSPHO-COA KINASE-RELATED
Hgig_18194PRE-MRNA CLEAVAGE FACTOR IM, 25KD SUBUNIT
Hgig_18195
Hgig_18196
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