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_26199
Hgig_26200
Hgig_2620160S RIBOSOMAL PROTEIN L4
Hgig_26202DIACYLGLYCEROL LIPASE HOMOLOG-RELATED
Hgig_26203DIACYLGLYCEROL LIPASE HOMOLOG-RELATED
Hgig_26204
Hgig_26205PROTEIN CBG27172
Hgig_26206
Hgig_26207
Hgig_26208
Hgig_26209
Hgig_26210
Hgig_26211
Hgig_26212
Hgig_26213
Hgig_26214
Hgig_26215
Hgig_26216
Hgig_262173-OXO-5-ALPHA-STEROID 4-DEHYDROGENASE
Hgig_26218TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_26219
Hgig_26220
Hgig_26221
Hgig_26222
Hgig_26223OVOCHYMASE-RELATED
Hgig_26224
Hgig_26225LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED
Hgig_26226
Hgig_26227OVOCHYMASE-RELATED
Hgig_26228APICAL ENDOSOMAL GLYCOPROTEIN PRECURSOR.
Hgig_26229
Hgig_26230
Hgig_26231SORTING NEXIN FAMILY MEMBER
Hgig_26232DEHYDROGENASES, SHORT CHAIN
Hgig_26233SORTING NEXIN FAMILY MEMBER
Hgig_26234NON-HOMOLOGOUS END-JOINING FACTOR 1
Hgig_26235
Hgig_26236CUTICLE PROTEIN
Hgig_26237
Hgig_26238
Hgig_26239EXOSOME COMPLEX EXONUCLEASE RIBOSOMAL RNA PROCESSING PROTEIN
Hgig_26240
Hgig_26241
Hgig_26242
Hgig_26243
Hgig_26244RE48077P
Hgig_26245
Hgig_26246PROTEIN PHOSPHATASE PP2A REGULATORY SUBUNIT B
Hgig_26247
Hgig_26248ENHANCER OF YELLOW 2 TRANSCRIPTION FACTOR
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