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_01896GLUTAMINE SYNTHETASE
Hgig_01897ABC TRANSPORTER G FAMILY MEMBER 28
Hgig_01898TEL2 INTERACTING PROTEIN 1 TTI1 FAMILY MEMBER
Hgig_01899TEL2 INTERACTING PROTEIN 1 TTI1 FAMILY MEMBER
Hgig_01900ENDONUCLEASE
Hgig_01901
Hgig_01902REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_01903
Hgig_01904NEUROPEPTIDE Y RECEPTOR
Hgig_01905
Hgig_01906SODIUM-BILE ACID COTRANSPORTER
Hgig_01907
Hgig_01908ALANYL-TRNA SYNTHETASE
Hgig_01909
Hgig_01910ALANYL-TRNA SYNTHETASE
Hgig_01911ALANYL-TRNA SYNTHETASE
Hgig_01912DNA HELICASE RECQ FAMILY MEMBER
Hgig_01913KRAB AND ZINC FINGER DOMAIN-CONTAINING
Hgig_01914U3 SMALL NUCLEOLAR RIBONUCLEOPROTEIN PROTEIN IMP4
Hgig_01915DNA HELICASE RECQ FAMILY MEMBER
Hgig_01916TRANSLATION INITIATION FACTOR-RELATED
Hgig_01917
Hgig_01918TRANSLATION INITIATION FACTOR-RELATED
Hgig_01919TRANSLATION INITIATION FACTOR-RELATED
Hgig_01920SURVIVAL MOTOR NEURON-LIKE PROTEIN 1
Hgig_01921KELCH DOMAIN-CONTAINING PROTEIN
Hgig_01922KELCH DOMAIN-CONTAINING PROTEIN
Hgig_01923
Hgig_01924APONTIC
Hgig_01925
Hgig_01926
Hgig_01927MYOTROPHIN
Hgig_01928FIDO DOMAIN-CONTAINING PROTEIN DDB_G0283145
Hgig_01929
Hgig_01930
Hgig_01931HOMOCYSTEINE-RESPONSIVE ENDOPLASMIC RETICULUM-RESIDENT UNIQUITIN-LIKE DOMAIN HERPUD PROTEIN FAMILY MEMBER
Hgig_01932PHOSPHOLIPASE D
Hgig_01933
Hgig_01934GRB2-ASSOCIATED AND REGULATOR OF MAPK PROTEIN FAMILY MEMBER
Hgig_01935
Hgig_01936
Hgig_01937TOL-PAL SYSTEM PROTEIN TOLA
Hgig_01938
Hgig_01939DIMETHYLARGININE DIMETHYLAMINOHYDROLASE
Hgig_01940ADENYLOSUCCINATE SYNTHETASE
Hgig_01941ADENYLOSUCCINATE SYNTHETASE
Hgig_01942
Hgig_01943REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_01944REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_01945STRUCTURAL CONTITUENT OF CUTICLE
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