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_04996
Hgig_04997
Hgig_04998REVERSE TRANSCRIPTASE
Hgig_04999
Hgig_05000
Hgig_05001ZINC FINGER MYND DOMAIN-CONTAINING
Hgig_05002SID1 TRANSMEMBRANE FAMILY MEMEBER
Hgig_05003
Hgig_05004PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_05005PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_05006PHOSPHATIDYLINOSITOL-GLYCAN BIOSYNTHESIS CLASS F PROTEIN-RELATED
Hgig_05007ALR/ERV
Hgig_05008
Hgig_05009EARLY GAMETOCYTE ENRICHED PHOSPHOPROTEIN EGXP
Hgig_05010
Hgig_05011ARM REPEAT SUPERFAMILY PROTEIN
Hgig_05012-
Hgig_05013
Hgig_05014TRYPTASE-RELATED
Hgig_05015DULLARD PROTEIN PHOSPHATASE
Hgig_05016ACYL-COA-BINDING DOMAIN-CONTAINING PROTEIN 5
Hgig_05017
Hgig_05018PROTEIN CBG27172
Hgig_05019LEUCINE-ZIPPER-LIKE TRANSCRIPTIONAL REGULATOR 1
Hgig_05020DNA MISMATCH REPAIR PROTEIN MLH, PMS, MUTL
Hgig_05021
Hgig_05022
Hgig_05023
Hgig_05024ATILLA, ISOFORM B-RELATED-RELATED
Hgig_05025PROTEIN PHOSPHATASE
Hgig_05026
Hgig_05027
Hgig_05028
Hgig_05029GPALPP MOTIFS-CONTAINING PROTEIN 1
Hgig_05030GPALPP MOTIFS-CONTAINING PROTEIN 1
Hgig_05031MRG-BINDING PROTEIN
Hgig_05032
Hgig_05033SYNAPTIC VESICLE GLYCOPROTEIN 2
Hgig_05034
Hgig_05035
Hgig_05036
Hgig_05037
Hgig_05038ECTOPIC P GRANULES PROTEIN 5 HOMOLOG
Hgig_05039
Hgig_05040
Hgig_05041
Hgig_05042ECTOPIC P GRANULES PROTEIN 5 HOMOLOG
Hgig_05043
Hgig_05044METHYLOSOME PROTEIN 50
Hgig_05045UNC-93 RELATED
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