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_00396
Hgig_00397
Hgig_00398
Hgig_00399
Hgig_00400
Hgig_00401ENGULFMENT AND CELL MOTILITY
Hgig_00402KICSTOR COMPLEX PROTEIN C12ORF66
Hgig_00403KICSTOR COMPLEX PROTEIN C12ORF66
Hgig_00404ENGULFMENT AND CELL MOTILITY
Hgig_00405
Hgig_00406RHO-GTPASE-ACTIVATING PROTEIN LRG1
Hgig_00407MAJOR FACILITATOR SUPERFAMILY PROTEIN-RELATED
Hgig_00408TRIFUNCTIONAL ENZYME SUBUNIT ALPHA
Hgig_00409
Hgig_00410
Hgig_00411CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_00412CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_00413
Hgig_00414
Hgig_00415ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_00416REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_00417PARKIN COREGULATED GENE PROTEIN PARK2 COREGULATED
Hgig_00418SULFATE TRANSPORTER
Hgig_00419
Hgig_00420IONOTROPIC RECEPTOR 20A-RELATED
Hgig_00421G-PROTEIN COUPLED RECEPTOR 158-RELATED
Hgig_00422FIBROIN HEAVY CHAIN FIB-H LIKE PROTEIN
Hgig_00423
Hgig_00424ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_00425
Hgig_00426
Hgig_00427
Hgig_00428LYSM AND PUTATIVE PEPTIDOGLYCAN-BINDING DOMAIN-CONTAINING PROTEIN
Hgig_00429TRANSCRIPTION INITIATION FACTOR TFIID SUBUNIT 6
Hgig_00430TRANSCRIPTION INITIATION FACTOR TFIID SUBUNIT 6
Hgig_0043160S RIBOSOMAL PROTEIN L34
Hgig_00432ATP-BINDING CASSETTE SUB-FAMILY C
Hgig_00433CYTOPLASMIC POLYADENYLATION ELEMENT BINDING PROTEIN CPEB
Hgig_00434
Hgig_00435DIACYLGLYCEROL KINASE
Hgig_00436TRANSCRIPTION FACTOR S-II ZINC FINGER DOMAIN-CONTAINING PROTEIN
Hgig_00437WD40 REPEAT PROTEIN
Hgig_00438GLYCEROL-3-PHOSPHATE ACYLTRANSFERASE
Hgig_00439TELOMERASE-BINDING PROTEIN P23 HSP90 CO-CHAPERONE
Hgig_00440REVERSE TRANSCRIPTASES
Hgig_00441ODD-SKIPPED - RELATED
Hgig_00442PROTEIN NEDD1
Hgig_00443PROTEIN NEDD1
Hgig_00444
Hgig_00445CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
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