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_02496PROTEIN CBG27172
Hgig_02497
Hgig_02498GTP-BINDING PROTEIN HFLX
Hgig_02499KU AUTOANTIGEN DNA HELICASE
Hgig_02500THYMIDYLATE KINASE
Hgig_02501FORMATE DEHYDROGENASE 1
Hgig_02502PEPTIDYL-PROLYL CIS-TRANS ISOMERASE-RELATED
Hgig_02503RAB GDP/GTP EXCHANGE FACTOR
Hgig_02504COBW-RELATED
Hgig_02505UNCHARACTERIZED
Hgig_02506FOLLICULIN FAMILY MEMBER
Hgig_02507FOLLICULIN FAMILY MEMBER
Hgig_02508RIBOSOMAL PROTEIN L5-RELATED
Hgig_02509NADH-UBIQUINONE OXIDOREDUCTASE ASHI SUBUNIT
Hgig_02510ATP SYNTHASE GAMMA CHAIN
Hgig_02511DNA REPAIR/RNA PROCESSING CPSF FAMILY
Hgig_02512ADP RIBOSYLATION FACTOR-RELATED
Hgig_02513ZINC FINGER AND BTB DOMAIN-CONTAINING
Hgig_02514MITOTIC SPINDLE ASSEMBLY CHECKPOINT PROTEIN MAD2
Hgig_02515
Hgig_02516ZINC FINGER PROTEIN
Hgig_02517IONOTROPIC RECEPTOR 20A-RELATED
Hgig_02518IONOTROPIC RECEPTOR 20A-RELATED
Hgig_02519IONOTROPIC RECEPTOR 20A-RELATED
Hgig_02520ZINC FINGER PROTEIN
Hgig_02521PDZ DOMAIN CONTAINING WHIRLIN AND HARMONIN-RELATED
Hgig_02522
Hgig_02523ANKYRIN REPEAT-CONTAINING
Hgig_02524EG:EG0003.4 PROTEIN-RELATED
Hgig_02525EG:EG0003.4 PROTEIN-RELATED
Hgig_02526BEAT PROTEIN
Hgig_02527
Hgig_02528
Hgig_02529
Hgig_02530APICAL ENDOSOMAL GLYCOPROTEIN PRECURSOR.
Hgig_02531EXONUCLEASE, PHAGE-TYPE/RECB, C-TERMINAL DOMAIN-CONTAINING PROTEIN
Hgig_02532GABA-B RECEPTOR
Hgig_02533
Hgig_02534
Hgig_02535
Hgig_02536
Hgig_02537
Hgig_02538
Hgig_02539REVERSE TRANSCRIPTASE
Hgig_02540ENOYL-COA HYDRATASE
Hgig_02541
Hgig_02542
Hgig_02543MITOTIC SPINDLE ASSEMBLY CHECKPOINT PROTEIN MAD1 MITOTIC ARREST DEFICIENT-LIKE PROTEIN 1
Hgig_02544MITOTIC SPINDLE ASSEMBLY CHECKPOINT PROTEIN MAD1 MITOTIC ARREST DEFICIENT-LIKE PROTEIN 1
Hgig_02545PROTEIN CASC3
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