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_01746TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_01747
Hgig_01748
Hgig_01749
Hgig_01750
Hgig_01751MEDIATOR COMPLEX SUBUNIT
Hgig_01752MALE FERTILITY FACTOR KL5
Hgig_01753DYNEIN HEAVY CHAIN
Hgig_01754DYNEIN HEAVY CHAIN
Hgig_01755DYNEIN HEAVY CHAIN
Hgig_01756
Hgig_01757REVERSE TRANSCRIPTASES
Hgig_0175839S RIBOSOMAL PROTEIN L18, MITOCHONDRIAL
Hgig_01759
Hgig_01760NUCLEOPORIN AMO1-LIKE
Hgig_01761DNA2/NAM7 HELICASE FAMILY
Hgig_01762EUKARYOTIC TRANSLATION INITIATION FACTOR 3 SUBUNIT J
Hgig_01763
Hgig_01764UBIQUITIN CARBOXYL-TERMINAL HYDROLASE
Hgig_01765REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_01766PA-PL1 PHOSPHOLIPASE FAMILY
Hgig_01767PA-PL1 PHOSPHOLIPASE FAMILY
Hgig_01768PROTEIN O-LINKED-MANNOSE BETA-1,2-N-ACETYLGLUCOSAMINYLTRANSFERASE 1
Hgig_01769
Hgig_01770
Hgig_01771CALCIUM AND INTEGRIN BINDING FAMILY MEMBER 2
Hgig_01772CALCIUM AND INTEGRIN BINDING FAMILY MEMBER 2
Hgig_01773RIBONUCLEASE H1
Hgig_01774PROTEIN CBG26694
Hgig_01775SIDESTEP PROTEIN
Hgig_01776RHO-GTPASE-ACTIVATING PROTEIN 6 FAMILY MEMBER
Hgig_01777
Hgig_01778ECTOPIC P GRANULES PROTEIN 5 HOMOLOG
Hgig_01779BRCA1-ASSOCIATED PROTEIN
Hgig_01780
Hgig_01781SACCHAROPINE DEHYDROGENASE
Hgig_01782
Hgig_01783SACCHAROPINE DEHYDROGENASE
Hgig_01784CXC DOMAIN-CONTAINING PROTEIN-RELATED
Hgig_01785
Hgig_01786VITELLOGENIN RECEPTOR-LIKE PROTEIN-RELATED-RELATED
Hgig_01787
Hgig_01788
Hgig_01789
Hgig_01790
Hgig_01791REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_01792
Hgig_01793
Hgig_01794DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_01795RIBONUCLEASE H1
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