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_01696REVERSE TRANSCRIPTASE
Hgig_01697REVERSE TRANSCRIPTASE
Hgig_01698APOLIPOPROTEIN D
Hgig_01699
Hgig_01700COMM DOMAIN-CONTAINING PROTEIN 4-8 FAMILY MEMBER
Hgig_01701
Hgig_01702EXOCYST COMPLEX PROTEIN EXO70
Hgig_01703NGG1 INTERACTING FACTOR 3
Hgig_01704CELL DIVISION CYCLE 5-LIKE PROTEIN
Hgig_01705ETS
Hgig_01706G PROTEIN PATHWAY SUPPRESSOR 2
Hgig_01707CONSERVED OLIGOMERIC GOLGI COMPLEX COMPONENT 7
Hgig_01708NAD DEPENDENT EPIMERASE/DEHYDRATASE
Hgig_01709DOWNSTREAM NEIGHBOR OF SON
Hgig_01710
Hgig_01711CONSERVED OLIGOMERIC GOLGI COMPLEX COMPONENT 7
Hgig_01712NAD DEPENDENT EPIMERASE/DEHYDRATASE
Hgig_01713U11/U12 SMALL NUCLEAR RIBONUCLEOPROTEIN 25 KDA PROTEIN
Hgig_01714RASSF
Hgig_01715
Hgig_01716
Hgig_01717TNF RECEPTOR ASSOCIATED FACTOR
Hgig_01718SOLUTE CARRIER FAMILY 35
Hgig_01719
Hgig_01720SOLUTE CARRIER FAMILY 35
Hgig_01721
Hgig_01722
Hgig_01723
Hgig_01724
Hgig_01725
Hgig_01726RNA HELICASE
Hgig_01727FERREDOXIN-RELATED
Hgig_01728GUANINE NUCLEOTIDE EXCHANGE C9ORF72
Hgig_01729
Hgig_01730CYSTEINE PROTEASE FAMILY C1-RELATED
Hgig_01731ABC TRANSPORTER G FAMILY MEMBER 28
Hgig_01732
Hgig_01733
Hgig_01734
Hgig_01735ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_01736DYNACTIN SUBUNIT 5
Hgig_01737
Hgig_01738
Hgig_01739PIRNA BIOGENESIS PROTEIN EXD1
Hgig_01740GLUTAMATE SEMIALDEHYDE DEHYDROGENASE
Hgig_01741REVERSE TRANSCRIPTASE
Hgig_01742DNA-DIRECTED RNA POLYMERASE II, III
Hgig_01743
Hgig_01744STAR-RELATED LIPID TRANSFER PROTEIN 9
Hgig_01745STAR-RELATED LIPID TRANSFER PROTEIN 9
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