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_06096
Hgig_06097SUPEROXIDE DISMUTASE 2
Hgig_06098ERYTHROID DIFFERENTIATION-RELATED FACTOR 1
Hgig_06099
Hgig_06100
Hgig_06101
Hgig_06102
Hgig_06103
Hgig_06104
Hgig_06105CHLOROPLAST 50S RIBOSOMAL PROTEIN L22-RELATED
Hgig_06106HEXOKINASE
Hgig_06107
Hgig_06108HEXOKINASE
Hgig_06109
Hgig_06110
Hgig_06111ALKALINE PHOSPHATASE
Hgig_06112N-ACETYLGALACTOSAMINYLTRANSFERASE
Hgig_06113ALKALINE PHOSPHATASE
Hgig_06114
Hgig_06115
Hgig_06116IONOTROPIC RECEPTOR 20A-RELATED
Hgig_06117
Hgig_06118
Hgig_06119DEAD-BOX ATP-DEPENDENT RNA HELICASE 50
Hgig_06120
Hgig_06121
Hgig_06122
Hgig_06123
Hgig_06124
Hgig_06125PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_06126CCCH ZINGC FINGER
Hgig_06127
Hgig_06128
Hgig_06129
Hgig_06130
Hgig_06131
Hgig_06132
Hgig_06133REVERSE TRANSCRIPTASE
Hgig_0613460S RIBOSOMAL PROTEIN L24
Hgig_06135
Hgig_06136
Hgig_06137TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_06138
Hgig_06139REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_06140ELONGATION FACTOR G, MITOCHONDRIAL
Hgig_06141DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_06142
Hgig_06143
Hgig_06144REVERSE TRANSCRIPTASE
Hgig_06145ODD-SKIPPED - RELATED
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