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_25799
Hgig_25800
Hgig_25801TYROSINE SPECIFIC PROTEIN PHOSPHATASE AND DUAL SPECIFICITY PROTEIN PHOSPHATASE
Hgig_25802
Hgig_25803
Hgig_25804CELL DEATH ACTIVATOR CIDE
Hgig_25805NADH-UBIQUINONE OXIDOREDUCTASE SUBUNIT
Hgig_25806MONOCARBOXYLATE TRANSPORTER
Hgig_25807
Hgig_25808
Hgig_25809COILED-COIL-HELIX-COILED-COIL-HELIX DOMAIN CONTAINING 4
Hgig_25810PROTEIN DISULFIDE-ISOMERASE TMX3
Hgig_25811SINGLE STRANDED DNA BINDING PROTEIN
Hgig_25812
Hgig_25813
Hgig_25814GPI-ANCHOR TRANSAMIDASE
Hgig_25815ELL-ASSOCIATED FACTOR EAF
Hgig_25816CHARGED MULTIVESICULAR BODY PROTEIN
Hgig_25817SYMPLEKIN-RELATED
Hgig_25818
Hgig_25819
Hgig_25820SYMPLEKIN-RELATED
Hgig_25821UNCHARACTERIZED
Hgig_25822
Hgig_25823
Hgig_258241-ACYLGLYCEROL-3-PHOSPHATE ACYLTRANSFERASE-RELATED
Hgig_25825ARYLSULFATASE
Hgig_25826LEUCINE-RICH REPEAT AND IQ DOMAIN-CONTAINING PROTEIN 1-RELATED
Hgig_25827INNEXIN
Hgig_25828INNEXIN
Hgig_25829
Hgig_25830DNA-DIRECTED RNA POLYMERASE, MITOCHONDRIAL
Hgig_25831DNA-DIRECTED RNA POLYMERASE, MITOCHONDRIAL
Hgig_25832
Hgig_25833UNCHARACTERIZED
Hgig_25834
Hgig_25835
Hgig_25836
Hgig_25837TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_25838
Hgig_25839RIBOSE-PHOSPHATE DIPHOSPHOKINASE FAMILY MEMBER
Hgig_25840
Hgig_25841PROTEIN CBG27172
Hgig_25842DNAJ HOMOLOG SUBFAMILY C MEMBER 22
Hgig_25843RNA POLYMERASE II CTD PHOSPHATASE
Hgig_25844
Hgig_25845CCR4 NOT-RELATED
Hgig_25846CCR4 NOT-RELATED
Hgig_25847
Hgig_25848
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