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_09547
Hgig_09548SENTRIN-SPECIFIC PROTEASE
Hgig_09549C21ORF13-RELATED
Hgig_09550PALMITOYLTRANSFERASE ZDHHC16
Hgig_09551TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_09552HIGH MOBILITY GROUP PROTEIN 2
Hgig_09553COLLAGEN ALPHA
Hgig_09554ZGC:172139
Hgig_09555ZGC:172139
Hgig_09556ATP-BINDING CASSETTE SUB-FAMILY B
Hgig_09557ATP-BINDING CASSETTE SUB-FAMILY B
Hgig_09558
Hgig_09559IROQUOIS-CLASS HOMEODOMAIN PROTEIN IRX
Hgig_09560PROTEIN CBG27172
Hgig_09561IROQUOIS-CLASS HOMEODOMAIN PROTEIN IRX
Hgig_09562IROQUOIS-CLASS HOMEODOMAIN PROTEIN IRX
Hgig_09563UNCHARACTERIZED
Hgig_09564UNCHARACTERIZED
Hgig_09565COLLAGEN ALPHA
Hgig_09566PHOSPHOINOSITOL 3-PHOSPHATE-BINDING PROTEIN
Hgig_09567
Hgig_09568PHOSPHOINOSITOL 3-PHOSPHATE-BINDING PROTEIN
Hgig_09569
Hgig_09570
Hgig_09571
Hgig_09572
Hgig_09573SIDESTEP PROTEIN
Hgig_09574LACTOSYLCERAMIDE 4-ALPHA-GALACTOSYLTRANSFERASE ALPHA- 1,4-GALACTOSYLTRANSFERASE
Hgig_09575TRANSIENT RECEPTOR POTENTIAL CATION CHANNEL PROTEIN PAINLESS
Hgig_09576IONOTROPIC RECEPTOR 20A-RELATED
Hgig_09577LACTOSYLCERAMIDE 4-ALPHA-GALACTOSYLTRANSFERASE ALPHA- 1,4-GALACTOSYLTRANSFERASE
Hgig_09578
Hgig_09579
Hgig_09580POLY [ADP-RIBOSE] POLYMERASE
Hgig_09581
Hgig_09582
Hgig_09583PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_09584
Hgig_09585GLUCOSYLCERAMIDASE
Hgig_09586GLUCOSYLCERAMIDASE
Hgig_09587GLUCOSYLCERAMIDASE
Hgig_09588GLUCOSYLCERAMIDASE
Hgig_09589GLUCOSYLCERAMIDASE
Hgig_09590EXPORTIN-T/LOS1
Hgig_09591TETRATRICOPEPTIDE REPEAT PROTEIN 31
Hgig_09592C21ORF13-RELATED
Hgig_09593MICROFIBRIL-ASSOCIATED PROTEIN
Hgig_09594PROTEIN PHOSPHATASE 1 REGULATORY SUBUNIT
Hgig_09595
Hgig_09596ENDONUCLEASE
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