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_27199
Hgig_27200
Hgig_27201ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27202TRANSPOSASE-RELATED
Hgig_27203PROTEIN-COUPLED RECEPTOR GPR1, PUTATIVE-RELATED
Hgig_27204IONOTROPIC RECEPTOR 20A-RELATED
Hgig_27205
Hgig_27206
Hgig_27207PROTEIN O-LINKED-MANNOSE BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE 1
Hgig_27208ENDONUCLEASE
Hgig_27209
Hgig_27210
Hgig_27211KRAB AND ZINC FINGER DOMAIN-CONTAINING
Hgig_27212
Hgig_27213
Hgig_27214
Hgig_27215MACROGLOBULIN / COMPLEMENT
Hgig_27216TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27217LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEIN 2-RELATED
Hgig_27218ALKYLDIHYDROXYACETONEPHOSPHATE SYNTHASE, PEROXISOMAL
Hgig_27219PROTEIN CBG27172
Hgig_27220CARBOHYDRATE SULFOTRANSFERASE
Hgig_27221LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED PROTEIN 2-RELATED
Hgig_27222LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED
Hgig_27223REGUCALCIN
Hgig_27224
Hgig_27225UNCHARACTERIZED
Hgig_27226U1 SMALL NUCLEAR RIBONUCLEOPROTEIN C
Hgig_27227
Hgig_27228
Hgig_27229ZNF44 PROTEIN
Hgig_27230
Hgig_27231
Hgig_27232
Hgig_27233
Hgig_27234
Hgig_27235
Hgig_27236ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27237TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27238TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_27239
Hgig_27240REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_27241ZINC FINGER PROTEIN
Hgig_27242
Hgig_27243ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_27244ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_27245TRANSPOSABLE ELEMENT-RELATED
Hgig_27246
Hgig_27247ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_27248
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