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_07797ORGANIC ANION TRANSPORTER
Hgig_07798LIPID PHOSPHATE PHOSPHATASE
Hgig_07799BIORIENTATION OF CHROMOSOMES IN CELL DIVISION 1 FAMILY MEMBER
Hgig_07800
Hgig_07801
Hgig_07802NUCLEAR RECEPTOR COACTIVATOR 6
Hgig_07803
Hgig_07804MATING RESPONSE PROTEIN POI2
Hgig_07805RBR FAMILY RING FINGER AND IBR DOMAIN-CONTAINING
Hgig_07806MALE STERILITY PROTEIN 2-RELATED
Hgig_07807
Hgig_07808
Hgig_07809
Hgig_07810MALE STERILITY PROTEIN 2-RELATED
Hgig_07811
Hgig_07812
Hgig_07813FORKHEAD BOX PROTEIN J2 FAMILY MEMBER
Hgig_07814KH DOMAIN CONTAINING RNA BINDING PROTEIN
Hgig_07815KH DOMAIN CONTAINING RNA BINDING PROTEIN
Hgig_07816POLYCOMB GROUP PROTEIN
Hgig_07817
Hgig_07818TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_07819
Hgig_07820
Hgig_07821AP ENDONUCLEASE
Hgig_07822
Hgig_07823PYRUVATE DEHYDROGENASE E1 COMPONENT, ALPHA SUBUNIT BACTERIAL AND ORGANELLAR
Hgig_07824PYRUVATE KINASE
Hgig_07825
Hgig_07826TRANSMEMBRANE EMP24 DOMAIN-CONTAINING PROTEIN
Hgig_07827TRANSCRIPTASE, PUTATIVE-RELATED-RELATED
Hgig_07828
Hgig_07829
Hgig_07830INTEGRAL MEMBRANE PROTEIN DGCR2/IDD
Hgig_07831WITH PUTATIVE URIDYL PYROPHOSPHORYLASE-RELATED
Hgig_07832WITH PUTATIVE URIDYL PYROPHOSPHORYLASE-RELATED
Hgig_07833SERINE PEPTIDASE S9 FAMILY MEMBER
Hgig_07834SERINE PEPTIDASE S9 FAMILY MEMBER
Hgig_07835
Hgig_07836
Hgig_07837CYSTEINE PROTEASE ATG4
Hgig_07838MULTI-COPPER OXIDASE
Hgig_07839
Hgig_07840FLAP ENDONUCLEASE FAMILY MEMBER
Hgig_07841BRAIN PROTEIN I3
Hgig_07842
Hgig_07843ENDONUCLEASE RELATED
Hgig_07844
Hgig_07845
Hgig_07846CYTOCHROME P450
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