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_00546EG:EG0003.4 PROTEIN-RELATED
Hgig_00547EG:EG0003.4 PROTEIN-RELATED
Hgig_00548RNA HELICASE
Hgig_00549
Hgig_00550MELANOMA INHIBITORY ACTIVITY-RELATED
Hgig_00551MELANOMA INHIBITORY ACTIVITY-RELATED
Hgig_00552ATP-DEPENDENT RNA HELICASE RHLE-RELATED
Hgig_00553
Hgig_00554
Hgig_00555
Hgig_00556
Hgig_00557
Hgig_00558HEME OXYGENASE
Hgig_00559VACUOLAR ATP SYNTHASE SUBUNIT G
Hgig_00560
Hgig_00561ACYL-COA-BINDING PROTEIN, ACBP
Hgig_00562TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_005632',3'-CYCLIC-NUCLEOTIDE 3'-PHOSPHODIESTERASE
Hgig_00564
Hgig_00565ENDOGLIN-RELATED
Hgig_00566REVERSE TRANSCRIPTASE
Hgig_00567
Hgig_00568
Hgig_00569TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_00570
Hgig_00571TRANSPOSABLE ELEMENT-RELATED
Hgig_00572
Hgig_00573NADH-UBIQUINONE OXIDOREDUCTASE SGDH SUBUNIT
Hgig_00574SODIUM/NUCLEOSIDE COTRANSPORTER
Hgig_00575
Hgig_00576
Hgig_00577PROTEIN CBG27172
Hgig_00578
Hgig_00579
Hgig_00580
Hgig_00581RIBOSOMAL PROTEIN L5-RELATED
Hgig_00582PROTEIN CBG27172
Hgig_00583
Hgig_00584PEROXISOMAL MEMBRANE PROTEIN PMP34-RELATED
Hgig_00585PEROXISOMAL MEMBRANE PROTEIN PMP34-RELATED
Hgig_00586
Hgig_00587MICROSOMAL DIPEPTIDASE
Hgig_00588PAIRED BOX PROTEIN PAX-6-RELATED-RELATED
Hgig_00589TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_00590TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_00591TRANSPOSASE-RELATED
Hgig_00592UBIQUITIN CARBOXYL-TERMINAL HYDROLASE
Hgig_00593
Hgig_00594CHITIN BINDING PERITROPHIN-A
Hgig_00595MATRIX METALLOPROTEINASE
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