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_05846HISTONE H2B
Hgig_05847INNER MEMBRANE TRANSPORTER YGJI-RELATED
Hgig_05848
Hgig_05849
Hgig_05850REVERSE TRANSCRIPTASE
Hgig_05851SUCCINYL-COA--D-CITRAMALATE COA-TRANSFERASE
Hgig_05852ZINC PHOSPHODIESTERASE ELAC PROTEIN 2
Hgig_05853
Hgig_05854METALLO PHOSPHOESTERASE RELATED
Hgig_0585560S RIBOSOMAL PROTEIN L11-RELATED
Hgig_05856TRANSPOSABLE ELEMENT-RELATED
Hgig_05857UNCHARACTERIZED
Hgig_05858
Hgig_05859GLYCOPROTEIN HORMONE RECEPTOR
Hgig_05860CYTOCHROME B-C1 COMPLEX SUBUNIT RIESKE, MITOCHONDRIAL
Hgig_05861
Hgig_05862
Hgig_05863DEHYDROGENASE RELATED
Hgig_05864
Hgig_05865ELONGATION FACTOR TS
Hgig_05866
Hgig_05867
Hgig_05868DELTA(14)-STEROL REDUCTASE
Hgig_05869VEPH-A/MELTED
Hgig_05870VEPH-A/MELTED
Hgig_05871
Hgig_05872COLLAGEN ALPHA
Hgig_05873
Hgig_05874REVERSE TRANSCRIPTASE
Hgig_05875
Hgig_05876
Hgig_05877RNA-BINDING PROTEIN RELATED
Hgig_05878
Hgig_05879
Hgig_05880
Hgig_05881
Hgig_05882
Hgig_05883
Hgig_05884INNER MEMBRANE TRANSPORTER YGJI-RELATED
Hgig_05885
Hgig_05886IG-LIKE DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_05887UNCHARACTERIZED
Hgig_05888TRANSPOSABLE ELEMENT-RELATED
Hgig_05889PROTEASE FAMILY M14 CARBOXYPEPTIDASE A,B
Hgig_05890
Hgig_05891
Hgig_05892
Hgig_05893
Hgig_05894DNA HELICASE RECQ FAMILY MEMBER
Hgig_05895CHARGED MULTIVESICULAR BODY PROTEIN
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