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_18297DNA REPAIR/RNA PROCESSING CPSF FAMILY
Hgig_18298THAP DOMAIN PROTEIN
Hgig_18299PEPTIDE CHAIN RELEASE FACTOR
Hgig_18300
Hgig_18301ANKYRIN REPEAT FAMILY PROTEIN
Hgig_18302TRANSIENT RECEPTOR POTENTIAL CATION CHANNEL PROTEIN PAINLESS
Hgig_18303
Hgig_18304RAS-LIKE FAMILY MEMBER 11
Hgig_18305TRANSPOSABLE ELEMENT-RELATED
Hgig_18306PROTEASE U48 CAAX PRENYL PROTEASE RCE1
Hgig_18307PROTEIN DIAPHANOUS
Hgig_18308SI:CH211-156B7.4
Hgig_18309SORTING NEXIN-29-RELATED
Hgig_18310
Hgig_18311
Hgig_18312
Hgig_18313
Hgig_18314
Hgig_18315
Hgig_18316SPONDIN
Hgig_18317
Hgig_18318FATTY ACID AMIDE HYDROLASE
Hgig_18319G-PROTEIN COUPLED RECEPTOR B0563.6-LIKE PROTEIN-RELATED
Hgig_18320FORKHEAD BOX P, ISOFORM C
Hgig_18321FORKHEAD BOX P, ISOFORM C
Hgig_18322SPHINGOSINE-1-PHOSPHATE PHOSPHOHYDROLASE
Hgig_18323NITRIC OXIDE-ASSOCIATED PROTEIN 1
Hgig_18324
Hgig_18325NITRIC OXIDE-ASSOCIATED PROTEIN 1
Hgig_18326
Hgig_18327
Hgig_18328L-2-HYDROXYCARBOXYLATE DEHYDROGENASE (NAD(P)(+))
Hgig_18329
Hgig_18330
Hgig_18331L-2-HYDROXYCARBOXYLATE DEHYDROGENASE (NAD(P)(+))
Hgig_18332
Hgig_18333NIPSNAP-RELATED
Hgig_18334ELONGATOR COMPLEX PROTEIN 1
Hgig_18335LEUCOKININ RECEPTOR-RELATED
Hgig_18336
Hgig_18337AP COMPLEX SUBUNIT MU
Hgig_18338SOLUTE CARRIER FAMILY 22 MEMBER
Hgig_18339ENHANCER OF POLYCOMB
Hgig_18340RNA POLYMERASE II-ASSOCIATED PROTEIN 3
Hgig_18341MEF2B PROTEIN
Hgig_18342DILUTE DOMAIN-CONTAINING PROTEIN YPR089W
Hgig_18343MYOSIN
Hgig_18344MYOSIN
Hgig_18345MYOSIN
Hgig_18346STAR-RELATED LIPID TRANSFER PROTEIN 9
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