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_07647BETA-HEXOSAMINIDASE
Hgig_07648ABC TRANSPORTER G FAMILY MEMBER 28
Hgig_07649PROTEIN O-LINKED-MANNOSE BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE 1
Hgig_07650
Hgig_07651
Hgig_07652FIBRINOGEN/TENASCIN/ANGIOPOEITIN
Hgig_07653PEPTIDASE
Hgig_07654CTX-RELATED TYPE I TRANSMEMBRANE PROTEIN
Hgig_07655
Hgig_07656
Hgig_07657
Hgig_07658
Hgig_07659PRE-MRNA-PROCESSING FACTOR 19
Hgig_07660
Hgig_07661CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_07662
Hgig_07663REVERSE TRANSCRIPTASE
Hgig_07664
Hgig_07665
Hgig_07666KELCH PROTEIN
Hgig_07667
Hgig_07668
Hgig_07669PROTEIN KINASE RELATED
Hgig_07670NUP107-RELATED
Hgig_07671
Hgig_07672
Hgig_07673NUP107-RELATED
Hgig_07674RIBONUCLEASE H1
Hgig_07675RNA BINDING PROTEIN
Hgig_07676RNA BINDING PROTEIN
Hgig_07677S-ADENOSYL-METHYLTRANSFERASE MRAW
Hgig_07678AATF PROTEIN APOPTOSIS ANTAGONIZING TRANSCRIPTION FACTOR
Hgig_07679KELCH PROTEIN
Hgig_07680LEUCINE-RICH PPR MOTIF-CONTAINING PROTEIN, MITOCHONDRIAL
Hgig_07681
Hgig_07682LEUCINE-RICH PPR MOTIF-CONTAINING PROTEIN, MITOCHONDRIAL
Hgig_07683
Hgig_07684
Hgig_07685
Hgig_07686
Hgig_07687
Hgig_07688ALPHA-MANNOSIDASE
Hgig_07689ALPHA-MANNOSIDASE
Hgig_07690ALPHA-MANNOSIDASE
Hgig_07691
Hgig_07692EXPRESSED PROTEIN
Hgig_07693AAA DOMAIN-CONTAINING
Hgig_07694
Hgig_07695AAA DOMAIN-CONTAINING
Hgig_07696AAA DOMAIN-CONTAINING
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