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_19497GTP-BINDING PROTEIN ALPHA SUBUNIT
Hgig_19498ANTIGEN BSP, PUTATIVE-RELATED
Hgig_19499INOSITOL 5-PHOSPHATASE
Hgig_19500
Hgig_19501OTU DEUBIQUITINASE WITH LINEAR LINKAGE-SPECIFICITY A-RELATED
Hgig_19502TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_19503
Hgig_19504PROTEIN CBG27172
Hgig_19505REVERSE TRANSCRIPTASE
Hgig_19506REVERSE TRANSCRIPTASE
Hgig_19507
Hgig_19508PROTEIN CBG27172
Hgig_19509
Hgig_19510TRANSPOSASE-RELATED
Hgig_19511
Hgig_19512
Hgig_19513
Hgig_19514DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_19515
Hgig_19516
Hgig_19517
Hgig_19518
Hgig_19519PROTEIN CBG27172
Hgig_19520
Hgig_19521RETINOL DEHYDROGENASE
Hgig_195223'-5' EXORIBONUCLEASE CSL4-RELATED
Hgig_19523FOS TRANSCRIPTION FACTOR-RELATED
Hgig_19524STAR-RELATED LIPID TRANSFER PROTEIN 9
Hgig_19525METALLOPROTEASE TIKI
Hgig_19526
Hgig_19527
Hgig_19528GLUTAMATE SYNTHASE [NADPH] SMALL CHAIN
Hgig_1952939S RIBOSOMAL PROTEIN L45, MITOCHONDRIAL
Hgig_1953039S RIBOSOMAL PROTEIN L45, MITOCHONDRIAL
Hgig_19531CYTOPLASMIC FMR1-INTERACTING PROTEIN-RELATED
Hgig_19532DEHYDROGENASE/REDUCTASE SDR FAMILY MEMBER 11
Hgig_19533SERINE/THREONINE-PROTEIN KINASE
Hgig_19534
Hgig_19535CYSTEINE PROTEASE FAMILY C1-RELATED
Hgig_19536ZINC FINGER PROTEIN
Hgig_19537OSJNBA0013A04.12 PROTEIN
Hgig_19538-
Hgig_19539-
Hgig_19540
Hgig_195412-AMINOMUCONIC SEMIALDEHYDE DEHYDROGENASE
Hgig_19542
Hgig_19543
Hgig_19544
Hgig_19545PROPROTEIN CONVERTASE SUBTILISIN/KEXIN-RELATED
Hgig_19546
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