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_22697ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_22698RABCONNECTIN-3B, ISOFORM A
Hgig_22699RABCONNECTIN-3B, ISOFORM A
Hgig_22700N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22701N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22702N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22703IONOTROPIC GLUTAMATE RECEPTOR
Hgig_22704
Hgig_22705ANCIENT UBIQUITOUS PROTEIN
Hgig_22706
Hgig_22707TESTIS DEVELOPMENT PROTEIN PRTD
Hgig_22708
Hgig_22709PEPTIDYLPROLYL ISOMERASE
Hgig_22710HISTONE DEACETYLASE HDAC1-RELATED
Hgig_22711
Hgig_22712PROTEIN O-LINKED-MANNOSE BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE 1
Hgig_22713PROTEIN O-LINKED-MANNOSE BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE 1
Hgig_22714
Hgig_22715ACROSIN-RELATED
Hgig_22716SCAVENGER RECEPTOR CLASS B TYPE-1 SR-B1
Hgig_22717SCAVENGER RECEPTOR CLASS B TYPE-1 SR-B1
Hgig_22718DNA REPAIR PROTEIN COMPLEMENTING XP-A CELLS
Hgig_22719SCAVENGER RECEPTOR CLASS B TYPE-1 SR-B1
Hgig_22720AMINO ACID TRANSPORTER
Hgig_22721ZINC FINGER PROTEIN
Hgig_22722KRUEPPEL-LIKE TRANSCRIPTION FACTOR
Hgig_22723
Hgig_22724ZINC FINGER PROTEIN
Hgig_22725UNCHARACTERIZED
Hgig_22726ROUND SPERMATID BASIC PROTEIN 1
Hgig_22727FORMIN
Hgig_22728EPHRIN
Hgig_22729EPHRIN
Hgig_22730RHO GTPASE-ACTIVATING PROTEIN 100F
Hgig_22731E3 UBIQUITIN-PROTEIN LIGASE RNF165
Hgig_22732PROTEIN CBG27172
Hgig_22733
Hgig_22734
Hgig_22735
Hgig_22736COLLAGEN
Hgig_22737RNA BINDING PROTEIN
Hgig_22738
Hgig_22739
Hgig_22740
Hgig_22741REVERSE TRANSCRIPTASE
Hgig_22742
Hgig_22743
Hgig_22744PROTEIN CBG27172
Hgig_22745CYSTEINE-RICH SECRETORY PROTEIN-RELATED
Hgig_22746TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
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