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_02946
Hgig_02947GLYCOPROTEIN HORMONE RECEPTOR
Hgig_02948DNAJ-LIKE-2, ISOFORM A-RELATED
Hgig_02949ANK_REP_REGION DOMAIN-CONTAINING PROTEIN
Hgig_02950
Hgig_02951ADENYLATE CYCLASE TYPE 1
Hgig_02952
Hgig_02953
Hgig_02954
Hgig_02955REVERSE TRANSCRIPTASE
Hgig_02956
Hgig_02957
Hgig_02958RETINAL ROD RHODOPSIN-SENSITIVE CGMP 3',5'-CYCLIC PHOSPHODIESTERASE DELTA-SUBUNIT
Hgig_02959
Hgig_02960
Hgig_02961
Hgig_02962REVERSE TRANSCRIPTASES
Hgig_02963ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_02964COLLAGEN ALPHA
Hgig_02965
Hgig_02966
Hgig_02967THIOSULFATE SULFURTRANSFERASE RDL2, MITOCHONDRIAL-RELATED
Hgig_02968CELL DIVISION CYCLE 16,23,27
Hgig_02969
Hgig_02970
Hgig_02971LIPASE
Hgig_02972LIPASE
Hgig_02973LIPASE
Hgig_02974LIPASE
Hgig_02975LIPASE
Hgig_02976LIPASE
Hgig_02977LIPASE
Hgig_02978LIPASE
Hgig_02979LIPASE
Hgig_02980LIPASE
Hgig_02981LIPASE
Hgig_02982
Hgig_02983
Hgig_02984RE43931P-RELATED
Hgig_0298560S ACIDIC RIBOSOMAL PROTEIN P1
Hgig_02986PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_02987A-KINASE ANCHOR PROTEINS
Hgig_02988REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_02989
Hgig_02990
Hgig_02991MITOCHONDRIAL ATP SYNTHASE B CHAIN
Hgig_02992
Hgig_02993HVA22-LIKE PROTEINS
Hgig_02994NUCLEOTIDE-SUGAR TRANSMEMBRANE TRANSPORTER
Hgig_02995RAN GTPASE-ACTIVATING PROTEIN 1
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