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_04346TRANSPOSABLE ELEMENT-RELATED
Hgig_04347
Hgig_04348NON-LTR RETROLELEMENT REVERSE TRANSCRIPTASE-LIKE PROTEIN-RELATED
Hgig_04349
Hgig_04350SYNTAXIN
Hgig_04351
Hgig_04352
Hgig_04353NEUROTRANSMITTER GATED ION CHANNEL
Hgig_04354
Hgig_04355TRANSPOSABLE ELEMENT-RELATED
Hgig_04356
Hgig_04357TRANSMEMBRANE PROTEIN 151 HOMOLOG
Hgig_04358
Hgig_04359TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_04360CYCLIC NUCLEOTIDE-GATED CATION CHANNEL SUBUNIT A
Hgig_04361
Hgig_04362BEAT PROTEIN
Hgig_04363
Hgig_04364
Hgig_04365MITOCHONDRIAL UBIQUITIN LIGASE ACTIVATOR OF NFKB 1
Hgig_04366INNER MEMBRANE TRANSPORTER YGJI-RELATED
Hgig_04367MITOCHONDRIAL UBIQUITIN LIGASE ACTIVATOR OF NFKB 1
Hgig_04368TRANSMEMBRANE PROTEASE SERINE
Hgig_04369TRANSMEMBRANE PROTEASE SERINE
Hgig_04370RAB3 GTPASE-ACTIVATING PROTEIN CATALYTIC SUBUNIT
Hgig_04371ULP_PROTEASE DOMAIN-CONTAINING PROTEIN
Hgig_04372ATP-DEPENDENT CLP PROTEASE PROTEOLYTIC SUBUNIT
Hgig_04373
Hgig_04374PYM PROTEIN
Hgig_04375HOMOLOC-13
Hgig_04376FI14130P
Hgig_04377FI14130P
Hgig_04378
Hgig_04379OVARIAN CARCINOMA IMMUNOREACTIVE ANTIGEN
Hgig_04380
Hgig_04381SPECTRIN/FILAMIN RELATED CYTOSKELETAL PROTEIN
Hgig_04382GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE
Hgig_04383VERY-LONG-CHAIN (3R)-3-HYDROXYACYL-COA DEHYDRATASE
Hgig_04384
Hgig_04385PELOTA
Hgig_04386RAS GTPASE-ACTIVATING PROTEINS
Hgig_04387RAS GTPASE-ACTIVATING PROTEINS
Hgig_04388
Hgig_04389RAS GTPASE-ACTIVATING PROTEINS
Hgig_04390NPC INTRACELLULAR CHOLESTEROL TRANSPORTER 1
Hgig_04391
Hgig_04392
Hgig_04393
Hgig_04394
Hgig_04395PSEUDOURIDYLATE SYNTHASE
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