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_17047
Hgig_17048LIM DOMAIN-CONTAINING PROTEIN
Hgig_17049
Hgig_17050PROTEIN CBG27172
Hgig_17051
Hgig_17052
Hgig_17053LIM DOMAIN-CONTAINING PROTEIN
Hgig_17054
Hgig_17055SOLUTE CARRIER FAMILY 22 MEMBER
Hgig_17056STRUCTURAL CONTITUENT OF CUTICLE
Hgig_17057STRUCTURAL CONTITUENT OF CUTICLE
Hgig_17058STRUCTURAL CONTITUENT OF CUTICLE
Hgig_17059STRUCTURAL CONTITUENT OF CUTICLE
Hgig_17060
Hgig_17061STRUCTURAL CONTITUENT OF CUTICLE
Hgig_17062REPRESSOR OF RNA POLYMERASE III TRANSCRIPTION MAF1
Hgig_17063-
Hgig_17064
Hgig_17065
Hgig_17066
Hgig_17067REVERSE TRANSCRIPTASE DOMAIN-CONTAINING PROTEIN
Hgig_17068
Hgig_17069
Hgig_17070
Hgig_17071TYROSINE-PROTEIN KINASE RECEPTOR
Hgig_1707260S/50S RIBOSOMAL PROTEIN L6/L9
Hgig_17073SOLUTE CARRIER FAMILY 34 SODIUM PHOSPHATE , MEMBER 2-RELATED
Hgig_17074
Hgig_17075CALCIUM AND INTEGRIN BINDING FAMILY MEMBER 2
Hgig_17076UNCHARACTERIZED
Hgig_17077
Hgig_17078GUANYL-NUCLEOTIDE EXCHANGE FACTOR
Hgig_17079
Hgig_17080COATOMER SUBUNIT EPSILON
Hgig_17081COATOMER SUBUNIT EPSILON
Hgig_17082
Hgig_17083LYSYL OXIDASE-LIKE-RELATED
Hgig_17084
Hgig_17085DEFECTIVE PROBOSCIS EXTENSION RESPONSE DPR -RELATED
Hgig_17086
Hgig_17087
Hgig_17088POTASSIUM CHANNEL, SUBFAMILY K
Hgig_17089POTASSIUM CHANNEL, SUBFAMILY K
Hgig_17090HSC70-INTERACTING PROTEIN
Hgig_17091DNA REPAIR PROTEIN XRCC3
Hgig_17092DNA REPAIR PROTEIN XRCC3
Hgig_17093GTP-BINDING PROTEIN ALPHA SUBUNIT
Hgig_17094
Hgig_17095GTP-BINDING PROTEIN ALPHA SUBUNIT
Hgig_17096IP06524P-RELATED
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