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_23947HISTONE H3
Hgig_23948HISTONE H2A
Hgig_23949HISTONE H2B
Hgig_23950HISTONE H3
Hgig_23951HISTONE H2A
Hgig_23952HISTONE H3
Hgig_23953HISTONE H2A
Hgig_23954HISTONE H2B
Hgig_23955HISTONE H2B
Hgig_23956HISTONE H2B
Hgig_23957HISTONE H2A
Hgig_23958HISTONE H3
Hgig_23959HISTONE H4
Hgig_23960HISTONE H2A
Hgig_23961HISTONE H3
Hgig_23962HISTONE H4
Hgig_23963HISTONE H2A
Hgig_23964HISTONE H2B
Hgig_23965HISTONE H3
Hgig_23966HISTONE H4
Hgig_23967HISTONE H2A
Hgig_23968HISTONE H2B
Hgig_23969CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_23970
Hgig_23971ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_23972
Hgig_23973REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23974REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23975
Hgig_23976REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23977REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_23978ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_23979MANNOSE-6-PHOSPHATE RECEPTOR FAMILY MEMBER
Hgig_23980HISTONE H3
Hgig_23981HISTONE H3
Hgig_23982HISTONE H3
Hgig_23983
Hgig_23984GLUTATHIONE S TRANSFERASE D10, ISOFORM A-RELATED
Hgig_23985GLUTATHIONE S TRANSFERASE D10, ISOFORM A-RELATED
Hgig_23986POLY(A) RNA POLYMERASE
Hgig_23987WD40 DOMAIN-CONTAINING PROTEIN MIO FAMILY MEMBER
Hgig_23988ADDITIONAL SEX COMBS LIKE PROTEIN ASXL
Hgig_23989SERINE HYDROXYMETHYLTRANSFERASE
Hgig_23990
Hgig_23991DNA-DIRECTED RNA POLYMERASE SUBUNIT K
Hgig_23992MEIOTIC NUCLEAR DIVISION PROTEIN 1 HOMOLOG
Hgig_23993PDF RECEPTOR-LIKE PROTEIN-RELATED
Hgig_23994TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_23995AAA-FAMILY ATPASE
Hgig_23996PROTEASOME SUBUNIT ALPHA/BETA
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