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/Redescription

1. Birstein J A, Vinogradov M E. Pelagicheskie gammaridy (Amphipoda, Gammaridea) Kurilo-Kamchatskoi Vpadiny[J]. Akademiya Nauk SSSR, Trudy Instituta Okeanologii, 1955, 12: 219-257. (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_15747AMINO ACID TRANSPORTER
Hgig_15748PROTEIN CBG27172
Hgig_15749
Hgig_15750
Hgig_15751
Hgig_15752
Hgig_15753ANKYRIN REPEAT AND STERILE ALPHA MOTIF DOMAIN-CONTAINING PROTEIN 1
Hgig_15754ANKYRIN REPEAT AND STERILE ALPHA MOTIF DOMAIN-CONTAINING PROTEIN 1
Hgig_15755TRANSMEMBRANE 7 SUPERFAMILY MEMBER 3
Hgig_15756PAIRED BOX PROTEIN PAX-6-RELATED-RELATED
Hgig_15757PAIRED BOX PROTEIN PAX-6-RELATED-RELATED
Hgig_15758
Hgig_15759
Hgig_15760SPERMATOGENESIS-ASSOCIATED PROTEIN 1
Hgig_15761MAX DIMERIZATION, MAD
Hgig_15762
Hgig_15763
Hgig_15764
Hgig_15765PYRUVATE DEHYDROGENASE KINASE
Hgig_15766
Hgig_15767
Hgig_15768
Hgig_15769
Hgig_15770
Hgig_15771UNCHARACTERIZED
Hgig_15772
Hgig_15773
Hgig_15774UNCHARACTERIZED
Hgig_15775TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_15776
Hgig_15777TRANSPOSABLE ELEMENT TC3 TRANSPOSASE-LIKE PROTEIN
Hgig_15778UNCHARACTERIZED
Hgig_15779
Hgig_15780UNCHARACTERIZED
Hgig_15781
Hgig_15782MYOTUBULARIN-RELATED
Hgig_15783
Hgig_15784MYOTUBULARIN-RELATED
Hgig_15785
Hgig_15786
Hgig_15787PROTEIN CBG27172
Hgig_15788
Hgig_15789
Hgig_15790LEUCINE-RICH REPEAT-CONTAINING
Hgig_15791NEURENSIN 1-RELATED
Hgig_15792
Hgig_15793TUBULIN
Hgig_15794ENDO/EXONUCLEASE/PHOSPHATASE DOMAIN-CONTAINING PROTEIN
Hgig_15795ZINC FINGER PROTEIN
Hgig_15796MAP KINASE KINASE KINASE SSK2-RELATED-RELATED
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