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_00896
Hgig_00897ODD-SKIPPED - RELATED
Hgig_00898ODD-SKIPPED - RELATED
Hgig_00899ODD-SKIPPED - RELATED
Hgig_00900ODD-SKIPPED - RELATED
Hgig_00901ODD-SKIPPED - RELATED
Hgig_00902ODD-SKIPPED - RELATED
Hgig_00903ODD-SKIPPED - RELATED
Hgig_00904ODD-SKIPPED - RELATED
Hgig_00905
Hgig_00906DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_00907DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_00908
Hgig_00909BEAT PROTEIN
Hgig_00910BEAT PROTEIN
Hgig_00911DIACYLGLYCEROL O-ACYLTRANSFERASE
Hgig_00912DIACYLGLYCEROL O-ACYLTRANSFERASE
Hgig_00913DIACYLGLYCEROL O-ACYLTRANSFERASE
Hgig_00914
Hgig_00915DIACYLGLYCEROL O-ACYLTRANSFERASE
Hgig_00916DIACYLGLYCEROL O-ACYLTRANSFERASE
Hgig_00917
Hgig_00918
Hgig_00919
Hgig_00920RIBONUCLEASE H1
Hgig_00921
Hgig_00922MITOCHONDRIAL 28S RIBOSOMAL PROTEIN S28
Hgig_00923SMALL NUCLEAR RNA ACTIVATING COMPLEX, POLYPEPTIDE 1
Hgig_00924
Hgig_00925EG:EG0003.4 PROTEIN-RELATED
Hgig_00926LOW-DENSITY LIPOPROTEIN RECEPTOR-RELATED
Hgig_00927
Hgig_00928
Hgig_00929
Hgig_00930
Hgig_00931
Hgig_00932
Hgig_00933TRANSPOSASE-RELATED
Hgig_00934
Hgig_00935TRANSCRIPTION FACTOR E2F
Hgig_00936
Hgig_00937
Hgig_00938ANAMORSIN
Hgig_00939
Hgig_00940NETRIN/LAMININ-RELATED
Hgig_00941RIBOSOMAL PROTEIN L5-RELATED
Hgig_00942
Hgig_00943
Hgig_00944
Hgig_00945KINESIN-LIKE PROTEIN KLP-3
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