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_00596
Hgig_00597MATRIX METALLOPROTEINASE
Hgig_00598ANOCTAMIN
Hgig_00599UPF0183 PROTEIN
Hgig_00600
Hgig_00601ANOCTAMIN
Hgig_00602
Hgig_00603
Hgig_00604CHROMOSOME TRANSMISSION FIDELITY FACTOR 18
Hgig_00605
Hgig_00606ARV1
Hgig_00607ARV1
Hgig_00608NUCLEOPORIN NUP43
Hgig_00609
Hgig_00610
Hgig_00611TRANSCRIPTIONAL ADAPTER 3-RELATED
Hgig_00612TRANSCRIPTIONAL ADAPTER 3-RELATED
Hgig_00613
Hgig_00614PROTEIN CBG26694
Hgig_00615
Hgig_00616
Hgig_00617
Hgig_00618
Hgig_00619NEUROTRANSMITTER GATED ION CHANNEL
Hgig_00620REVERSE TRANSCRIPTASE
Hgig_00621REVERSE TRANSCRIPTASE
Hgig_00622TRANSPOSASE-RELATED
Hgig_00623PROTEIN CBG27172
Hgig_00624
Hgig_00625REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_00626PROTEIN CBG27172
Hgig_00627POU DOMAIN
Hgig_00628POU DOMAIN
Hgig_00629
Hgig_00630
Hgig_00631PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_00632UNCHARACTERIZED
Hgig_00633
Hgig_00634
Hgig_00635
Hgig_00636
Hgig_00637ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_00638
Hgig_00639
Hgig_00640GALACTOSYLGALACTOSYLXYLOSYLPROTEIN 3-BETA-GLUCURONOSYLTRANSFERASE BETA-1,3-GLUCURONYLTRANSFERASE
Hgig_00641N-LINKED OLIGOSACCHARIDE PROCESSING
Hgig_00642REVERSE TRANSCRIPTASES
Hgig_00643
Hgig_00644
Hgig_00645
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