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_23797SPLICING FACTOR U2AF-ASSOCIATED PROTEIN 2
Hgig_23798MANNOSE, PHOSPHOLIPASE, LECTIN RECEPTOR RELATED
Hgig_23799PHD AND RING FINGER DOMAIN-CONTAINING PROTEIN 1
Hgig_23800PHD AND RING FINGER DOMAIN-CONTAINING PROTEIN 1
Hgig_23801
Hgig_23802
Hgig_23803PROTEASE FAMILY S9B,C DIPEPTIDYL-PEPTIDASE IV-RELATED
Hgig_23804REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23805N-ACETYLGALACTOSAMINYLTRANSFERASE
Hgig_23806PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_23807SERINE PROTEASE INHIBITOR, SERPIN
Hgig_23808
Hgig_23809STAR-RELATED LIPID TRANSFER PROTEIN 9
Hgig_23810
Hgig_23811
Hgig_23812MITOCHONDRIAL 2-OXODICARBOXYLATE CARRIER 1-RELATED
Hgig_23813
Hgig_23814HERMANSKY-PUDLAK SYNDROME 3 PROTEIN
Hgig_23815NADP-SPECIFIC ISOCITRATE DEHYDROGENASE
Hgig_23816SERINE/THREONINE-PROTEIN KINASE TAO1-LIKE PROTEIN
Hgig_23817SERINE/THREONINE-PROTEIN KINASE TAO1-LIKE PROTEIN
Hgig_23818
Hgig_23819HERMANSKY-PUDLAK SYNDROME 3 PROTEIN
Hgig_23820
Hgig_23821LONGEVITY ASSURANCE FACTOR 1 LAG1
Hgig_23822LONGEVITY ASSURANCE FACTOR 1 LAG1
Hgig_23823REPLICATION PROTEIN A3
Hgig_23824PROCOLLAGEN-LYSINE,2-OXOGLUTARATE 5-DIOXYGENASE/GLYCOSYLTRANSFERASE 25 FAMILY MEMBER
Hgig_23825FIBROBLAST GROWTH FACTOR RECEPTOR
Hgig_23826DYNACTIN 1-RELATED MICROTUBULE-BINDING
Hgig_23827REDUCED GROWTH PHENOTYPE 1 RGP1, YEAST -RELATED
Hgig_23828
Hgig_23829
Hgig_23830
Hgig_23831SPECTRIN/FILAMIN RELATED CYTOSKELETAL PROTEIN
Hgig_23832
Hgig_23833SPECTRIN/FILAMIN RELATED CYTOSKELETAL PROTEIN
Hgig_23834SPECTRIN/FILAMIN RELATED CYTOSKELETAL PROTEIN
Hgig_23835CALPONIN HOMOLOGY DOMAIN-CONTAINING PROTEIN DDB_G0272472-RELATED
Hgig_23836
Hgig_23837TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23838TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23839OUT AT FIRST
Hgig_23840OTU DOMAIN CONTAINING PROTEIN
Hgig_23841
Hgig_23842
Hgig_23843
Hgig_23844
Hgig_23845CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_23846
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