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_02046
Hgig_02047
Hgig_02048
Hgig_02049ASPARTYL/ASPARAGINYL BETA-HYDROXYLASE
Hgig_02050
Hgig_02051
Hgig_02052EG:EG0003.4 PROTEIN-RELATED
Hgig_02053PROTEIN STAR
Hgig_02054DEVELOPMENTALLY REGULATED GTP-BINDING PROTEIN-RELATED
Hgig_02055
Hgig_02056DEVELOPMENTALLY REGULATED GTP-BINDING PROTEIN-RELATED
Hgig_02057UNCHARACTERIZED
Hgig_02058ZINC FINGER PROTEIN
Hgig_02059
Hgig_02060CARBOHYDRATE SULFOTRANSFERASE
Hgig_02061TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_02062
Hgig_02063CYTOKINE RECEPTOR
Hgig_02064CARBOHYDRATE SULFOTRANSFERASE
Hgig_02065GALACTOSE-3-O-SULFOTRANSFERASE
Hgig_02066
Hgig_02067
Hgig_02068PREFOLDIN SUBUNIT 6
Hgig_02069FAS-ASSOCIATED PROTEIN
Hgig_02070
Hgig_02071
Hgig_02072
Hgig_02073
Hgig_02074ENDONUCLEASE-RELATED
Hgig_02075
Hgig_02076
Hgig_02077TGF-BETA FAMILY
Hgig_02078DRAB5-RELATED
Hgig_02079
Hgig_02080PEPTIDYL-PROLYL CIS-TRANS ISOMERASE
Hgig_0208160S RIBOSOMAL PROTEIN L3-RELATED
Hgig_02082STRUCTURAL MAINTENANCE OF CHROMOSOMES SMC FAMILY MEMBER
Hgig_02083
Hgig_02084LIPASE
Hgig_02085
Hgig_02086
Hgig_02087TRANSPOSON
Hgig_02088
Hgig_02089
Hgig_02090
Hgig_02091DISCOIDIN, CUB, EGF, LAMININ , AND ZINC METALLOPROTEASE DOMAIN CONTAINING
Hgig_02092BETA-GALACTOSIDASE RELATED
Hgig_02093
Hgig_02094
Hgig_02095
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