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_20197CALBINDIN
Hgig_20198
Hgig_20199NACHT DOMAIN-CONTAINING PROTEIN
Hgig_20200CALBINDIN
Hgig_20201PROTEIN CBG27172
Hgig_20202ZINC FINGER PROTEIN
Hgig_20203EXODEOXYRIBONUCLEASE III
Hgig_20204
Hgig_20205
Hgig_20206
Hgig_20207KELCH PROTEIN
Hgig_20208REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_20209
Hgig_20210
Hgig_20211ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_20212
Hgig_20213
Hgig_20214
Hgig_20215
Hgig_20216EXONUCLEASE, PHAGE-TYPE/RECB, C-TERMINAL DOMAIN-CONTAINING PROTEIN
Hgig_20217
Hgig_20218
Hgig_20219E3 UBIQUITIN-PROTEIN LIGASE UBR5
Hgig_20220CGI-141-RELATED/LIPASE CONTAINING PROTEIN
Hgig_20221CGI-141-RELATED/LIPASE CONTAINING PROTEIN
Hgig_20222FIMBRIN/PLASTIN
Hgig_20223
Hgig_20224LD33804P
Hgig_20225
Hgig_20226
Hgig_20227REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_20228
Hgig_20229
Hgig_20230KELCH PROTEIN
Hgig_20231HSC70CB, ISOFORM G-RELATED
Hgig_20232HSC70CB, ISOFORM G-RELATED
Hgig_20233HEAT SHOCK PROTEIN 70KDA
Hgig_20234HSC70CB, ISOFORM G-RELATED
Hgig_20235HEAT SHOCK PROTEIN 70KDA
Hgig_20236HSC70CB, ISOFORM G-RELATED
Hgig_20237HEAT SHOCK PROTEIN 70KDA
Hgig_20238PASIFLORA 1, ISOFORM A-RELATED
Hgig_20239PASIFLORA 1, ISOFORM A-RELATED
Hgig_20240-
Hgig_20241
Hgig_20242RIBOSOMAL PROTEIN L2
Hgig_20243
Hgig_20244
Hgig_20245CONSERVED OLIGOMERIC GOLGI COMPLEX COMPONENT 7
Hgig_20246AMPHIPHYSIN
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