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_22747
Hgig_22748
Hgig_22749
Hgig_22750
Hgig_22751
Hgig_22752
Hgig_22753SIDESTEP PROTEIN
Hgig_22754SIDESTEP PROTEIN
Hgig_22755UNCHARACTERIZED
Hgig_22756DEOXYRIBONUCLEASE TATDN2-RELATED
Hgig_22757VACUOLAR PROTEIN SORTING-ASSOCIATED PROTEIN 37
Hgig_22758GAG-RELATED PROTEIN
Hgig_22759MELANOCYTE PROTEIN PMEL 17-RELATED
Hgig_22760CELL CYCLE CONTROL PROTEIN 50
Hgig_22761UV EXCISION REPAIR PROTEIN RAD23
Hgig_22762
Hgig_22763
Hgig_22764SESQUIPEDALIAN
Hgig_22765ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_22766
Hgig_22767REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_22768REVERSE TRANSCRIPTASES
Hgig_22769
Hgig_22770
Hgig_22771
Hgig_22772
Hgig_22773FIVE-SPAN TRANSMEMBRANE PROTEIN M83
Hgig_22774AMINOMETHYLTRANSFERASE
Hgig_22775ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA
Hgig_22776ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA
Hgig_22777TRANSCRIPTION INITIATION FACTOR IIB-RELATED
Hgig_22778
Hgig_22779
Hgig_22780ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA
Hgig_22781ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA
Hgig_22782ATP-BINDING CASSETTE TRANSPORTER SUBFAMILY A ABCA
Hgig_22783LYSOSOMAL ACID LIPASE-RELATED
Hgig_22784TRANSCRIPTION FACTOR DP
Hgig_22785REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_22786PROTOHEME IX FARNESYLTRANSFERASE, MITOCHONDRIAL
Hgig_22787
Hgig_22788
Hgig_22789HL01030P-RELATED
Hgig_22790CYSTEINE DESULFURYLASE FAMILY MEMBER
Hgig_22791OXIDASE/PEROXIDASE
Hgig_22792
Hgig_22793
Hgig_22794UBIQUITIN THIOLESTERASE PROTEIN OTUB
Hgig_22795
Hgig_22796
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