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.

Classification

Animalia (Kingdom); Arthropoda (Phylum); Crustacea (Subphylum); Multicrustacea (Superclass); Malacostraca (Class); Eumalacostraca (Subclass); Peracarida (Superorder); Amphipoda (Order); Amphilochidea (Suborder); Lysianassida (Infraorder); Lysianassidira (Parvorder); Lysianassoidea (Superfamily); Hirondelleidae (Family); Hirondellea (Genus); Hirondellea gigas (Species)

Original Name

Tetronychia gigas Birstein & M. Vinogradov, 1955

Original description

(Birstein et al., 1955)

Distribution/locality

Philippine Trench from Philippine Sea, Mariana Trench from North Pacific Ocean and Kuril-Kamchatka Trench


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 completeness (%)Scaffold/Contig N50 (kb)GC content (%)Repeat Rate (%)Gene Number
-13.92GbChromosome2025CNA0142381-CNP000537489.34 458,700/466.138.872.7527,881

References
TitleJournalPubmed ID
The amphipod genome reveals population dynamics and adaptations to hadal environmentCell40054448

Gene Information

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Gene IDDescription
Hgig_17597PHOSPHOINOSITIDE-SPECIFIC PHOSPHOLIPASE C FAMILY PROTEIN
Hgig_17598
Hgig_17599NUCLEAR PORE MEMBRANE GLYCOPROTEIN GP210-RELATED
Hgig_17600NUCLEAR PORE MEMBRANE GLYCOPROTEIN GP210-RELATED
Hgig_17601
Hgig_17602
Hgig_17603TRNA (URACIL-5-)-METHYLTRANSFERASE
Hgig_17604
Hgig_17605PHAGE_INTEGRASE DOMAIN-CONTAINING PROTEIN
Hgig_17606ATAXIA TELANGIECTASIA MUTATED ATM -RELATED
Hgig_17607
Hgig_17608
Hgig_17609
Hgig_17610IDURONATE 2-SULFATASE
Hgig_17611ASPARTATE AMINOTRANSFERASE
Hgig_17612
Hgig_17613
Hgig_17614
Hgig_17615REVERSE TRANSCRIPTASE
Hgig_17616REVERSE TRANSCRIPTASE
Hgig_17617
Hgig_17618
Hgig_17619
Hgig_17620ZINC FINGER PROTEIN
Hgig_17621ZINC FINGER PROTEIN
Hgig_17622POL PROTEIN
Hgig_17623REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_17624
Hgig_17625TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_17626PROTEIN CBG26694
Hgig_17627
Hgig_17628
Hgig_17629
Hgig_17630
Hgig_17631PROTEIN CBG27172
Hgig_17632RIBONUCLEASE H1
Hgig_17633
Hgig_17634
Hgig_17635
Hgig_17636ZINC FINGER PROTEIN
Hgig_17637TRANSPOSABLE ELEMENT-RELATED
Hgig_17638REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_17639PROTEIN CBG26694
Hgig_17640
Hgig_17641
Hgig_17642
Hgig_17643SNAC DOMAIN-CONTAINING PROTEIN
Hgig_17644
Hgig_17645
Hgig_17646
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