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_18197
Hgig_18198
Hgig_18199TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_18200RIBOSOME BIOGENESIS PROTEIN
Hgig_18201ADAM10/ADAM17 METALLOPEPTIDASE FAMILY MEMBER
Hgig_18202ZINC FINGER PROTEIN
Hgig_18203APYRASE
Hgig_18204MRNA GUANINE-7- METHYLTRANSFERASE
Hgig_18205ADAM10/ADAM17 METALLOPEPTIDASE FAMILY MEMBER
Hgig_18206RIBOSOME BIOGENESIS PROTEIN
Hgig_18207
Hgig_18208LEUCINE ZIPPER-EF-HAND CONTAINING TRANSMEMBRANE PROTEIN
Hgig_18209PRESEQUENCE PROTEASE
Hgig_18210PRESEQUENCE PROTEASE
Hgig_18211LONGEVITY ASSURANCE FACTOR 1 LAG1
Hgig_18212SEPTIN
Hgig_18213HOMEOBOX PROTEIN PROSPERO/PROX-1/CEH-26
Hgig_18214
Hgig_18215
Hgig_18216
Hgig_18217
Hgig_18218
Hgig_18219N-ACETYLGLUCOSAMINYL-PHOSPHATIDYLINOSITOL BIOSYNTHETIC PROTEIN
Hgig_18220N-ACETYLGLUCOSAMINYL-PHOSPHATIDYLINOSITOL BIOSYNTHETIC PROTEIN
Hgig_18221
Hgig_18222
Hgig_18223
Hgig_18224REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_18225
Hgig_18226
Hgig_18227
Hgig_18228
Hgig_18229
Hgig_18230
Hgig_18231
Hgig_18232
Hgig_18233
Hgig_18234
Hgig_18235
Hgig_18236
Hgig_18237
Hgig_18238
Hgig_18239UNCHARACTERIZED
Hgig_18240
Hgig_18241VESICLE TRANSPORT V-SNARE PROTEIN VTI1-RELATED
Hgig_18242U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A/U2 SMALL NUCLEAR RIBONUCLEOPROTEIN B
Hgig_18243VACUOLAR PROTEIN SORTING 26 RELATED
Hgig_18244
Hgig_18245UNCHARACTERIZED
Hgig_18246
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