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_19547
Hgig_19548PROPROTEIN CONVERTASE SUBTILISIN/KEXIN-RELATED
Hgig_19549
Hgig_19550
Hgig_19551
Hgig_19552PROTEIN CBG27172
Hgig_19553
Hgig_19554TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_19555SOLUTE CARRIER FAMILY 22 MEMBER
Hgig_19556
Hgig_19557
Hgig_19558UBIQUITIN-CONJUGATING ENZYME E2
Hgig_19559
Hgig_19560
Hgig_19561UBIQUITIN-CONJUGATING ENZYME E2
Hgig_19562OPSIN
Hgig_19563G-PROTEIN COUPLED RECEPTOR
Hgig_19564PROTEIN CBG26694
Hgig_19565
Hgig_19566MICROTUBULE-ASSOCIATED PROTEIN RP/EB FAMILY MEMBER
Hgig_19567
Hgig_19568SOLUTE CARRIER FAMILY 12, CATION COTRANSPORTERS
Hgig_19569NEUROTRANSMITTER GATED ION CHANNEL
Hgig_19570REVERSE TRANSCRIPTASE
Hgig_19571
Hgig_19572
Hgig_19573TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_19574TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_19575
Hgig_19576TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_19577PROTEIN CBG26694
Hgig_19578
Hgig_19579
Hgig_19580
Hgig_19581THIOESTERASE 1/PROTEASE 1/LYSOPHOSPHOLIPASE L1
Hgig_19582REVERSE TRANSCRIPTASE
Hgig_19583
Hgig_19584REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_19585
Hgig_19586
Hgig_19587
Hgig_19588
Hgig_19589
Hgig_19590
Hgig_19591SEGMENTATION PROTEIN EVEN-SKIPPED
Hgig_19592NETRIN/LAMININ-RELATED
Hgig_19593RIBONUCLEASE H1
Hgig_19594MUTT/NUDIX HYDROLASE
Hgig_19595
Hgig_19596
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