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_23597
Hgig_23598
Hgig_23599
Hgig_23600EGF-LIKE DOMAIN-CONTAINING PROTEIN
Hgig_23601CRUMBS FAMILY MEMBER
Hgig_23602SPHINGOMYELIN PHOSPHODIESTERASE
Hgig_23603SPHINGOMYELIN PHOSPHODIESTERASE
Hgig_23604SPHINGOMYELIN PHOSPHODIESTERASE
Hgig_23605SPHINGOMYELIN PHOSPHODIESTERASE
Hgig_23606SPHINGOMYELIN PHOSPHODIESTERASE
Hgig_23607
Hgig_23608REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23609RAB-GAP/TBC-RELATED
Hgig_23610TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23611FI18025P1
Hgig_23612TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23613
Hgig_23614NEUROTRANSMITTER GATED ION CHANNEL
Hgig_23615NEUROTRANSMITTER GATED ION CHANNEL
Hgig_23616HISTONE ACETYLTRANSFERASE-RELATED
Hgig_23617BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE II
Hgig_23618
Hgig_23619BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE II
Hgig_23620PROTEIN CBG27172
Hgig_23621TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23622TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23623TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23624TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23625CUTICLE PROTEIN
Hgig_23626
Hgig_23627N-LINKED OLIGOSACCHARIDE PROCESSING
Hgig_23628CUTICLE PROTEIN
Hgig_23629
Hgig_23630REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23631N-LINKED OLIGOSACCHARIDE PROCESSING
Hgig_23632CUTICLE PROTEIN
Hgig_23633N-LINKED OLIGOSACCHARIDE PROCESSING
Hgig_23634TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23635CUTICLE PROTEIN
Hgig_23636N-LINKED OLIGOSACCHARIDE PROCESSING
Hgig_23637BASIC HELIX-LOOP-HELIX PROTEIN NEUROGENIN-RELATED
Hgig_23638LYSOSOMAL ACID LIPASE-RELATED
Hgig_23639
Hgig_23640
Hgig_23641
Hgig_23642TRANSPOSABLE ELEMENT-RELATED
Hgig_23643
Hgig_23644
Hgig_23645TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23646RAB GTPASE-ACTIVATING PROTEIN 1-LIKE
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