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_24697UBIQUITIN-CONJUGATING ENZYME E2
Hgig_24698
Hgig_24699
Hgig_24700VIRAL IAP-ASSOCIATED FACTOR HOMOLOG
Hgig_24701CARBOHYDRATE SULFOTRANSFERASE
Hgig_24702CARBOHYDRATE SULFOTRANSFERASE
Hgig_24703
Hgig_24704
Hgig_24705
Hgig_24706ZINC FINGER BED DOMAIN-CONTAINING PROTEIN 4
Hgig_24707
Hgig_24708
Hgig_24709
Hgig_24710
Hgig_24711
Hgig_24712REVERSE TRANSCRIPTASE
Hgig_24713REVERSE TRANSCRIPTASE
Hgig_24714RHO FAMILY GTPASE
Hgig_24715RHO FAMILY GTPASE
Hgig_24716TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_24717BTB DOMAIN TRANSCRIPTION FACTOR
Hgig_24718
Hgig_24719ARGININE OR CREATINE KINASE
Hgig_24720ADAM A DISINTEGRIN AND METALLOPROTEASE DOMAIN
Hgig_24721TRANSPOSON TY3-I GAG-POL POLYPROTEIN
Hgig_24722RNA-BINDING PROTEIN MUSASHI HOMOLOG RBP6
Hgig_24723REVERSE TRANSCRIPTASE
Hgig_24724GH11358P
Hgig_24725TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_24726
Hgig_24727NAD(P) TRANSHYDROGENASE
Hgig_24728
Hgig_24729
Hgig_24730
Hgig_24731
Hgig_24732
Hgig_24733
Hgig_24734
Hgig_24735
Hgig_24736
Hgig_24737
Hgig_24738
Hgig_24739
Hgig_24740
Hgig_24741KELCH PROTEIN
Hgig_24742TRANSCRIPTION INITIATION FACTOR IIIC TFIIIC , POLYPEPTIDE 3-RELATED
Hgig_24743
Hgig_24744
Hgig_24745TRANSCRIPTION INITIATION FACTOR IIIC TFIIIC , POLYPEPTIDE 3-RELATED
Hgig_24746
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