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_22497AFADIN- AND ALPHA-ACTININ-BINDING PROTEIN
Hgig_22498AFADIN- AND ALPHA-ACTININ-BINDING PROTEIN
Hgig_22499TF-1 CELL APOPTOSIS RELATED PROTEIN-15
Hgig_22500ARFAPTIN-RELATED
Hgig_22501ARFAPTIN-RELATED
Hgig_22502GAMMA-SECRETASE SUBUNIT PEN-2
Hgig_22503
Hgig_22504OPSIN
Hgig_22505
Hgig_22506CONTACTIN 5
Hgig_22507ATP-DEPENDENT RNA HELICASE
Hgig_22508ATP-DEPENDENT RNA HELICASE
Hgig_22509
Hgig_22510T-BOX PROTEIN-RELATED
Hgig_22511TRANSPOSABLE ELEMENT-RELATED
Hgig_22512ANKYRIN REPEAT DOMAIN-CONTAINING PROTEIN 13
Hgig_22513MAP/MICROTUBULE AFFINITY-REGULATING KINASE
Hgig_22514N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22515N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22516N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22517N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22518N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22519N-ACETYLATED-ALPHA-LINKED ACIDIC DIPEPTIDASE
Hgig_22520
Hgig_22521REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_22522
Hgig_22523
Hgig_22524
Hgig_22525METABOTROPIC GLUTAMATE RECEPTOR
Hgig_22526
Hgig_22527
Hgig_22528
Hgig_22529ANION EXCHANGE PROTEIN
Hgig_22530
Hgig_22531
Hgig_22532
Hgig_22533UNCHARACTERIZED
Hgig_22534UNCHARACTERIZED
Hgig_22535SCAVENGER RECEPTOR CLASS B TYPE-1 SR-B1
Hgig_22536NADH DEHYDROGENASE UBIQUINONE 1 ALPHA SUBCOMPLEX SUBUNIT 13
Hgig_22537ENDONUCLEASE-RELATED
Hgig_22538NUCLEOTIDE KINASE
Hgig_22539-
Hgig_22540SH2-SH3 ADAPTOR PROTEIN-RELATED
Hgig_22541RAS GTPASE-ACTIVATING PROTEINS
Hgig_22542NUCLEOTIDE KINASE
Hgig_22543REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_22544TRANSCRIPTION INITIATION FACTOR TFIID SUBUNIT 10
Hgig_22545CALCIUM BINDING PROTEINS
Hgig_22546
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