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_09697REVERSE TRANSCRIPTASE
Hgig_09698
Hgig_09699IONOTROPIC RECEPTOR 20A-RELATED
Hgig_09700
Hgig_09701O-ACYLTRANSFERASE
Hgig_09702O-ACYLTRANSFERASE
Hgig_09703MAJOR FACILITATOR SUPERFAMILY DOMAIN-CONTAINING PROTEIN
Hgig_09704O-ACYLTRANSFERASE
Hgig_09705
Hgig_09706
Hgig_09707O-ACYLTRANSFERASE
Hgig_09708CUBILIN
Hgig_09709ZINC FINGER CCHC DOMAIN-CONTAINING PROTEIN 7
Hgig_09710TYROSINE-PROTEIN PHOSPHATASE
Hgig_09711
Hgig_09712GROWTH ARREST-SPECIFIC PROTEIN 1
Hgig_09713
Hgig_09714
Hgig_09715
Hgig_09716NEUROTRANSMITTER GATED ION CHANNEL
Hgig_09717NEUROTRANSMITTER GATED ION CHANNEL
Hgig_09718
Hgig_09719
Hgig_09720
Hgig_09721
Hgig_09722RAS GTPASE-ACTIVATING PROTEIN WITH IQ MOTIF
Hgig_09723ENOYL-COA HYDRATASE-RELATED
Hgig_09724ENOYL-COA HYDRATASE-RELATED
Hgig_09725RIBOSOMAL PROTEIN L5-RELATED
Hgig_09726
Hgig_09727METHYL-CPG BINDING PROTEIN, MBD
Hgig_09728CARBONIC ANHYDRASE
Hgig_09729MAJOR FACILITATOR SUPERFAMILY DOMAIN-CONTAINING PROTEIN
Hgig_09730DOM-3 RELATED
Hgig_09731SYS1
Hgig_09732POTASSIUM CHANNEL, SUBFAMILY K
Hgig_09733
Hgig_09734ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_097355-HYDROXYTRYPTAMINE RECEPTOR
Hgig_097365-HYDROXYTRYPTAMINE RECEPTOR
Hgig_09737ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_097385-HYDROXYTRYPTAMINE RECEPTOR
Hgig_09739
Hgig_09740RNA METHYLTRANSFERASE
Hgig_09741RNA METHYLTRANSFERASE
Hgig_09742BCR-ASSOCIATED PROTEIN, BAP
Hgig_09743SERINE/THREONINE-PROTEIN KINASE
Hgig_09744
Hgig_09745
Hgig_09746
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