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_21397TRANSLATION FACTOR
Hgig_21398
Hgig_21399DI-N-ACETYLCHITOBIASE
Hgig_21400
Hgig_21401CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_21402
Hgig_21403
Hgig_21404BIFUNCTIONAL ASPARTATE AMINOTRANSFERASE AND GLUTAMATE/ASPARTATE-PREPHENATE AMINOTRANSFERASE-RELATED
Hgig_21405UNCHARACTERIZED
Hgig_21406ALPHA-MANNOSIDASE 2C1
Hgig_21407
Hgig_21408
Hgig_21409IONOTROPIC RECEPTOR 20A-RELATED
Hgig_21410ASPARAGINE SYNTHETASE DOMAIN-CONTAINING PROTEIN 1
Hgig_21411SUCCINATE-SEMIALDEHYDE DEHYDROGENASE, MITOCHONDRIAL
Hgig_21412
Hgig_21413PROTEIN REGULATOR OF CYTOKINESIS 1 PRC1-RELATED
Hgig_21414
Hgig_21415TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_21416BETA TRANSDUCIN-RELATED PROTEIN
Hgig_21417
Hgig_21418TGF-BETA FAMILY
Hgig_21419
Hgig_21420
Hgig_21421
Hgig_21422
Hgig_21423
Hgig_21424KINETOCHORE PROTEIN SPC25-RELATED
Hgig_21425
Hgig_21426
Hgig_21427
Hgig_21428U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A/U2 SMALL NUCLEAR RIBONUCLEOPROTEIN B
Hgig_21429ALPHA-MANNOSIDASE 2C1
Hgig_21430
Hgig_21431ATP-DEPENDENT RNA HELICASE
Hgig_21432
Hgig_21433UNCHARACTERIZED
Hgig_21434
Hgig_21435
Hgig_21436
Hgig_21437
Hgig_21438KRAB AND ZINC FINGER DOMAIN-CONTAINING
Hgig_21439TRANSLIN AND TRANSLIN ASSOCIATED PROTEIN X
Hgig_21440BASIC HELIX-LOOP-HELIX PROTEIN NEUROGENIN-RELATED
Hgig_21441E3 UBIQUITIN-PROTEIN LIGASE NHLRC1-RELATED
Hgig_21442INNER MEMBRANE TRANSPORTER YGJI-RELATED
Hgig_21443DYNEIN LIGHT INTERMEDIATE CHAIN
Hgig_21444PROTEASE FAMILY M28 PLASMA GLUTAMATE CARBOXYPEPTIDASE-RELATED
Hgig_21445SODIUM/CHLORIDE DEPENDENT TRANSPORTER
Hgig_21446SODIUM/CHLORIDE DEPENDENT TRANSPORTER
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