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_23147REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23148
Hgig_23149ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_23150RAD54-LIKE
Hgig_23151
Hgig_23152TRANSCRIPTION INITIATION FACTOR IA RRN3
Hgig_23153TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_23154
Hgig_23155
Hgig_23156
Hgig_23157
Hgig_23158
Hgig_23159
Hgig_23160
Hgig_23161CAMP-DEPENDENT PROTEIN KINASE REGULATORY CHAIN
Hgig_23162CAMP-DEPENDENT PROTEIN KINASE REGULATORY CHAIN
Hgig_23163-
Hgig_23164TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23165ENDONUCLEASE-RELATED
Hgig_23166
Hgig_23167
Hgig_23168E3 UFM1-PROTEIN LIGASE 1
Hgig_23169
Hgig_23170
Hgig_23171ADENYLOSUCCINATE LYASE
Hgig_23172TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_23173BIFUNCTIONAL INHIBITOR/LIPID-TRANSFER PROTEIN/SEED STORAGE 2S ALBUMIN SUPERFAMILY PROTEIN
Hgig_23174
Hgig_23175NUCLEAR HORMONE RECEPTOR
Hgig_23176SETA BINDING PROTEIN 1
Hgig_23177
Hgig_23178
Hgig_23179OPTIC ATROPHY 3 PROTEIN OPA3
Hgig_23180N-ACETYLGALACTOSAMINYLTRANSFERASE
Hgig_23181
Hgig_23182
Hgig_23183
Hgig_23184SWAP-70 RECOMBINASE
Hgig_23185REPLICATION PROTEIN A-RELATED
Hgig_23186REPLICATION PROTEIN A-RELATED
Hgig_23187
Hgig_23188TELOMERASE REVERSE TRANSCRIPTASE
Hgig_23189
Hgig_23190TELOMERASE REVERSE TRANSCRIPTASE
Hgig_23191
Hgig_23192TRANSMEMBRANE PROTEIN 254
Hgig_23193TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23194
Hgig_23195SECRETED MODULAR CALCIUM-BINDING PROTEIN
Hgig_23196REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
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