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_01046WD-40 REPEAT PROTEIN
Hgig_01047RIBOSOME BIOGENESIS PROTEIN NSA2 HOMOLOG
Hgig_01048CARBOHYDRATE SULFOTRANSFERASE
Hgig_01049RAS-ASSOCIATING DOMAIN CONTAINING PROTEIN
Hgig_01050
Hgig_01051
Hgig_01052
Hgig_01053SUGAR TRANSPORTER
Hgig_01054HEAT SHOCK PROTEIN HSP-12.2-RELATED
Hgig_01055HEAT SHOCK PROTEIN HSP-12.2-RELATED
Hgig_01056POTASSIUM CHANNEL, SUBFAMILY K
Hgig_01057DYNEIN REGULATORY COMPLEX PROTEIN 8
Hgig_01058
Hgig_01059
Hgig_01060
Hgig_01061UTP15 U3 SMALL NUCLEOLAR RNA-ASSOCIATED PROTEIN 15 FAMILY MEMBER
Hgig_01062
Hgig_01063
Hgig_01064
Hgig_01065
Hgig_01066UTP15 U3 SMALL NUCLEOLAR RNA-ASSOCIATED PROTEIN 15 FAMILY MEMBER
Hgig_01067
Hgig_01068
Hgig_01069INTEGRIN ALPHA
Hgig_01070INTEGRIN ALPHA
Hgig_01071PHOSPHOLIPASE A2 FAMILY MEMBER
Hgig_01072
Hgig_01073
Hgig_01074UNCHARACTERIZED
Hgig_01075PERIOSTIN-RELATED
Hgig_01076BASIC LEUCINE ZIPPER AND W2 DOMAIN-CONTAINING PROTEIN
Hgig_01077
Hgig_01078
Hgig_01079
Hgig_01080PEPTIDYL-TRNA HYDROLASE 2
Hgig_01081
Hgig_01082XYLOSIDE XYLOSYLTRANSFERASE 1
Hgig_01083
Hgig_01084
Hgig_01085CONTACTIN 5
Hgig_01086IP22168P
Hgig_01087
Hgig_01088
Hgig_01089IRON-SULFUR CLUSTER ASSEMBLY ENZYME NIFU HOMOLOG
Hgig_01090MANNOSE, PHOSPHOLIPASE, LECTIN RECEPTOR RELATED
Hgig_01091MANNOSE, PHOSPHOLIPASE, LECTIN RECEPTOR RELATED
Hgig_01092COPINE
Hgig_01093SET AND MYND DOMAIN CONTAINING, ARTHROPOD-SPECIFIC, MEMBER 4, ISOFORM A
Hgig_01094REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_01095
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